Hitachi H 60ME User manual

Type
User manual

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Hitachi H 60MEY is a powerful demolition hammer designed for heavy-duty tasks such as breaking concrete, asphalt, and other hard materials. With its robust construction and advanced technology, it delivers exceptional performance even under the most demanding conditions. The H 60MEY features an ergonomic design to reduce user fatigue and improve comfort during extended use, making it an ideal tool for professionals working in construction or demolition industries.

Hitachi H 60MEY is a powerful demolition hammer designed for heavy-duty tasks such as breaking concrete, asphalt, and other hard materials. With its robust construction and advanced technology, it delivers exceptional performance even under the most demanding conditions. The H 60MEY features an ergonomic design to reduce user fatigue and improve comfort during extended use, making it an ideal tool for professionals working in construction or demolition industries.

Overseas Sales Division
TROUBLESHOOTING GUIDE --------------------------------------------------------------------------------------------- 1
1. Troubleshooting and corrective action --------------------------------------------------------------------- 1
REPAIR GUIDE ---------------------------------------------------------------------------------------------------------------- 3
1. Precautions on disassembly and reassembly ----------------------------------------------------------- 3
STANDARD REPAIR TIME (UNIT) SCHEDULES ------------------------------------------------------------------ 18
CONTENTS
Page
PRODUCT NAME
Hitachi Demolition Hammer
Model H 60MEY
H 60ME
LIST No.
H 60MEY: F437
H 60ME: F436
Jun. 2016
H
-1-
[Bold] numbers in the description below correspond to the item numbers in the parts list and exploded
assembly diagram for the Model H 60MEY, {Bold} numbers to those for the Model H 60ME, and <Bold>
numbers to those for both models.
1. Troubleshooting and corrective action
Perform troubleshooting and take necessary corrective action according to the table below if there is a
problem that cannot be solved by the corrective action described in the handling instructions.
Problem Cause Check Corrective action
All the four LEDs
of the display
lamp are flashing.
• Broken Controller
Ass'y <67>
• No check needed. • Replace the Controller
Ass'y <67> with a new
one.
Three LEDs of
the display lamp
are flashing.
• Mix-up of three
internal wires of
Stator Sensor PCB
Set <58> and
Controller Ass'y
<67>
• Check the heat-shrink tube
colors (red, black, and white)
of internal wires connecting
the Stator Sensor PCB Set
<58> and Controller Ass'y
<67>.
• Correctly connect internal
wires of the Stator Sensor
PCB Set <58> and
Controller Ass'y <67> by
their tube colors (red,
black, and white).
• Broken Controller
Ass'y <67>
• Check the state of the
Controller Ass'y <67>
connector.
• Replace the Controller
Ass'y <67> with a new
one.
• Broken Rotor <66> • Check the built-in magnet of
the fan for breaks.
• Replace the Rotor <66>
with a new one.
Two LEDs of the
display lamp are
flashing.
• Broken Controller
Ass'y <67>
• No check needed. • Replace the Controller
Ass'y <67> with a new
one.
One LED of the
display lamp is
flashing.
• Improperly
connected
connector cable of
Stator Sensor PCB
Set <58>
• Check the plug-in state of the
connector cable.
(See “Reassembly of the
power supply unit” on page
12.)
• Firmly plug the connector
cable.
• Broken Stator
Sensor PCB Set
<58>
• When the connector cable is
not defective
• Replace the Stator
Sensor PCB Set <58>
with a new one.
• Broken Controller
Ass'y <67>
• Check the plug-in state of the
Controller Ass'y <67>
connector.
• Replace the Controller
Ass'y <67> with a new
one.
• Broken Rotor <66> • Check the built-in magnet of
the fan for breaks.
• Replace the Rotor <66>
with a new one.
TROUBLESHOOTING GUIDE
-2-
Problem Cause Check Corrective action
No LED of the
display lamp is
ON.
• Improperly
connected
connector cable of
the Panel Ass'y
<72> PCB
• Check the plug-in state of the
connector cable.
(See “Reassembly of the
power supply unit” on page
12.)
• Firmly plug in the
connector cable.
• Internal wires
loosely plugged
into the Controller
Ass'y <67> and
Filter PCB Ass'y
<78>
• Check the plug-in state of the
internal wires.
(See “Reassembly of the
power supply unit” on page
12.)
• Firmly plug the internal
wires into the Controller
Ass'y <67> and Filter
PCB Ass'y <78>.
• Broken Controller
Ass'y <67>
• When the Controller Ass'y
<67> connector is not
defective
• When the internal wire is not
defective
• Replace the Controller
Ass'y <67> with a new
one.
• Broken LED • When the connector cable is
not defective
• Replace the Panel Ass'y
<72> with a new one.
• Broken Filter PCB
Ass'y <78>
• When the internal wire is not
defective
• Replace the Filter PCB
Ass'y <78> with a new
one.
The LEDs of the
display lamp light,
but the motor
does not run.
• Internal wires
loosely connected
to the Switch <84>
• Check the plug-in state of
internal wires to the Switch
<84>. (See “Reassembly of
the power supply unit” on
page 12.)
• Firmly connect all internal
wires to the Switch <84>.
• Broken Controller
Ass'y <67>
• When internal wires of the
Controller Ass'y <67> are not
defective
• Replace the Controller
Ass'y <67> with a new
one.
• Broken Switch
<84>
• When internal wires of the
Controller Ass'y <67> are not
defective
• Replace the Switch <84>
with a new one.
-3-
1. Precautions on disassembly and reassembly
WARNING: Be sure to disconnect the power cord plug from the wall outlet before conducting repair.
Otherwise, the motor may run suddenly and you could get injured.
1. Disassembly of the tool retainer
Remove the Front Cap <1> while pulling the Grip <5> in the arrow direction. Note that the Front Cap <1> is
firmly fitted to the Retainer Sleeve <32>. Insert the edge of a flat-blade screwdriver or similar tool into the
gap between the Front Cap <1> and Grip <5>, and then pry up the Front Cap <1> by placing the fulcrum on
the Grip <5> as shown below. Then remove the Grip <5> from the Retainer Sleeve <32>.
Remove the Stopper Ring <2> by using a retaining ring puller. Then remove the Retainer Washer <3>,
Retainer Damper (A) <4>, Bit Lock Holder <6>, two Bit Locks <31>, Thrust Plate <7>, Retainer Spring
<8>, Spring Holder (A) <9>, and O-ring (S-26) <16> from the Retainer Sleeve <32>.
2. Disassembly of the hammering mechanism
(1) Removal of the second hammer and striker
(a) Remove the Bolt M5 x 18 <96> and then detach the Crank Cover <95> and lever holder ass'y from
the Crank Case [121]{111}. Then take out the Change Plate <104> and Slider <49> from the Crank
Case [121]{111}.
(b) Remove the Bolt M5 x 12 <18> from the Cylinder Case Cover <17> and then detach the Cylinder
Case Cover <17> from the Cylinder Case <24>.
(c) Remove the Bolt M8 x 35 <25> and detach the Cylinder Case <24> from the Crank Case [121]{111}.
(d) Remove the Retaining Ring D40 <19> and pull out the Roll Pin D2 x 10 <10> from the Cylinder Case
<24>. Then pull out the Retainer Sleeve <32>, Second Hammer <35>, Cylinder <39>, Striker <40>,
and other parts from the Cylinder Case <24> as a single assembly unit.
(e) Remove Metal (A) <50>, Slider <49>, Sleeve <48>, Clutch <47>, Clutch Spring <46>, Lock Spring
<44>, Lock Spring Washer <43>, Lock Sleeve <45>, and Spring Holder (B) <42> from the assembly
unit.
(f) Turn the Retainer Sleeve <32> and pull out the eight Needle Pins D8 <33> from the Retainer Sleeve
<32> to separate the Retainer Sleeve <32> from the Cylinder <39>.
Disassembly
REPAIR GUIDE
Flat-blade screwdriver
<9>
<32>
<2>
<3>
<31>
<8>
<5>
<7>
<16>
<4>
<6>
<1>
-4-
• Removal of the second hammer and striker
(g) Remove the Second Hammer <35> together with the Damper Holder <38>, Damper <37>, and
Damper Washer <36> from the detached Retainer Sleeve <32>.
(h) Strike the end of the Cylinder <39> with a plastic hammer to pull out the Striker <40>.
<95>
<104>
Lever holder ass'y
Cylinder case ass'y
Crank case ass'y
<19>
<10>
Weight ass'y
Pin hole
<45>
<44> <43>
<42> <35>
<37>
<36>
<32>
<50>
<48>
<39>
<40>
<46>
<33>
<38>
<49>
<47>
-5-
• Removal of the piston ass'y
(2) Removal of the piston ass’y
Remove the Retaining Ring for D12 Shaft <105>, and then move the Connecting Rod <54> as shown
below. Remove the piston ass’y from the Crank Shaft <106>.
(3) Removal of the first gear and crank shaft
(a) Remove the Bolt M5 x 12 <73> and Screw D4 x 25 <85>, and then detach handle (A) and handle (B).
Remove the Bolt M5 x 14 <61> and Bolt M5 x 16 <93>, and then detach the Back Cover <92>.
(b) Remove the Bolt M6 x 45 [122]{112} and Bolt M6 x 22 [126]{116}, and then detach the Crank Case
[121]{111} from the Gear Cover [128]{118}.
NOTE: For the Model H 60MEY, also remove the weight ass’y.
• Disassembly of the weight ass’y (Model H 60MEY only)
Remove the Crank Cover <95> and then remove the Bolt M5 x 30 [115] from the Crank Case [121].
Then take out the low-vibration mechanism.
(c) Wipe off grease from the Piston <53> side and the First Gear [124]{114} side in the Crank Case
[121]{111}, and then use a retaining ring puller to remove the Retaining Ring for D47 Hole <108>
that retains the Ball Bearing 6204DD <109>, while turning the Crank Shaft <106> so that you can
see the hole of the Retaining Ring for D47 Hole <108>.
(d) Place the Crank Case [121]{111} on an adequate cradle with the Piston <53> facing down, and then
use a hand press to press down on the end surface of the Crank Shaft <106>. Remove the First
Gear [124]{114} and Crank Shaft <106> from the Crank Case [121]{111}.
Adequate cradle
Hand press
<106>
<108>
<121>
[121]{111}
<106>
<107>
[124]{114}
<109>
<54>
<105>
<106>
Piston ass'y
Crank case ass'y
-6-
3. Removal of the motor
(1) Firmly hold the Housing <59> and use a
plastic hammer to tap the shaft of the Rotor
<66> until the spigot joint of the Gear Cover
[128]{118} is removed from the Housing
<59>.
(2) The Rotor <66> has strong magnetic force.
Firmly hold the Housing <59> and pull out the
Gear Cover [128]{118} from the Housing
<59>.
NOTE: When the Gear Cover [128]{118} is
separated from the Rotor <66> and
the Rotor <66> remains in the
Housing <59>, press the Housing
<59> and push the shaft section of
the Rotor <66> to remove the
motor.
Tap the shaft of the Rotor <66>.
• Removal of the motor
[128]{118}
<59>
<66>
-7-
Reassembly can be conducted by reversing the disassembly procedure. However, special attention should
be given to the following items.
1. Reassembly of the hammering mechanism and low vibration mechanism
(1) Mounting the first gear and crank shaft
(a) Press-fit Oil Seal [123]{113} to the Crank
Case [121]{111}. Mount O-ring (F) <110>.
Press-fit the Ball Bearing 6204DD <109>.
Use a retaining ring puller to mount the
Retaining Ring for D47 Hole <108>.
Press-fit the Crank Shaft <106> to the Ball
Bearing 6204DD <109>.
(b) Insert the Feather Key <107> into the
Crank Shaft <106> groove. Support the
plane of the Crank Shaft <106> with an
adequate steel rod and use an adequate
tool to press-fit the First Gear [124]{114}.
NOTE: Prior to press-fitting, make sure
the Feather Key <107> matches
the key groove of the First Gear
[124]{114}.
(2) Mounting the piston
(a) Insert the Connecting Rod <54> into the Piston <53> and then press-fit the Piston Pin <52> into the
D10 hole (marked “Φ2”) of the Piston <53>. Then mount the O-ring <51> on the Piston <53> to
complete the piston ass’y.
NOTE: Be careful not to let the Piston Pin <48> project from the outer diameter of the Piston
<53>.
(b) Next, turn the Crank Shaft <106> to the position shown below, and then mount the piston ass’y to
the Crank Shaft <106> from the Cylinder Case <24> side of the Crank Case [121]{111}. Use a
retaining ring puller to fix the Retaining Ring for D12 Shaft <105>.
Reassembly
Adequate tool
[121]{111}
Adequate steel rod
<106>
<107>
[124]{114}
<110>
[123]{123}
<109>
<105>
<106>
<54>
<53>
<51>
<52>
Marked with “Φ2”
-8-
(3) Mounting the cylinder and retainer sleeve
(a) Insert the Second Hammer <35> with O-ring <34>, Damper Washer <36>, Damper <37>, and
Damper Holder <38> to the Retainer Sleeve <32> in this order.
NOTE: Match the rounded surface of the Damper Washer <36> with the rounded surface of
the Second Hammer <35>.
(b) Insert the Cylinder <39> into the Retainer Sleeve <32> and insert eight Needle Pins D8 <33> into
the 8 mm dia. hole to connect them. To avoid dropping, apply Hitachi Motor Grease No. 29 to the
inside of Spring Holder (B) <42> lightly and then cover the needle pin insertion section of the
Retainer Sleeve <32> with Spring Holder (B) <42>.
(c) Insert the Striker <40> with O-ring <41> into the Cylinder <39> in the direction indicated in the figure.
(d) Mount the Retainer Damper Washer <30>, Damper Sleeve <29>, Retainer Damper (B) <28>, and
the Retainer Damper Holder <27> around the tip of the Retainer Sleeve <32> in this order.
NOTE: Match the rounded surface of the Retainer Damper Washer <30> with the rounded
surface of the Retainer Sleeve <32>. The Damper Sleeve <29> must be at the Retainer
Damper Washer <30> side.
(e) Insert the Retainer Sleeve <32> into the Ball Bearing 6008DDU <21> in the Cylinder Case <24>
ass’y, and then fix it with the Retaining Ring D40 <19>.
NOTE: Insert the Retainer Sleeve <32> straight in to avoid turning up the lip section of the Oil
Seal <23>.
(f) Insert the Lock Spring Washer <43> deep into the Cylinder Case <24>. Insert the Lock Spring <44>
until it contacts the Lock Spring Washer <43>. Then insert the Lock Sleeve <45> until it contacts the
Lock Spring <44>.
(g) Insert the Clutch Spring <46> until it contacts Spring Holder (B) <42> and then insert the Clutch
<47>.
(h) Insert the Sleeve <48>, Slider <49>, and Metal (A) <50> into the Cylinder Case <24> in the direction
indicated in the figure. Fix Metal (A) <50> and the Cylinder Case
<24> with the Roll Pin D2 x 10
<10>.
NOTE: Insert these parts in the correct direction as shown in the figure on the next page.
If Metal (A) <50> cannot be inserted fully, use the J-390 clutch jig (Code No. 370652).
Fix the tip of the Retainer Sleeve <32> and turn the J-390 clutch jig engaging with the
Clutch <47> until the Clutch <47> engages with the spline of the Cylinder <39>. If Metal
(A) <50> is still not inserted fully, fix the Cylinder Case <24> and turn the Clutch <47>
until the Lock Sleeve <45> engages with the spline of the Cylinder Case <24>. Perform
the above step (h) again if the engagement fails.
-9-
• Mounting the cylinder and retainer sleeve
<43>
<10>
Position the
concave portions
sideways.
Avoid the Oil Seal <23>
from being turned up.
Pay attention to the direction of the Retainer Damper
Washer <30> and Damper Washer <36>.
<45>
Position the notch downward.
Engage the Clutch <47>
with the J-390 clutch jig.
Engage the Lock Sleeve <45>
with the Clutch <47>.
Engage the Clutch <47>
with the Cylinder <39>.
Engage the Lock
Sleeve <45> with the
Cylinder Case <24>.
<50>
<41>
<39>
<40>
J-390 clutch jig (Code No. 370652)
<24>
<47>
<46>
<48>
<44>
Position the slider groove upward.
Insert position of the Lock Spring Washer <43>
-10-
(4) Reassembly of the vibration reduction mechanism (Model H 60MEY only)
(a) Apply Hitachi Motor Grease No. 29 to the Washer [112] and adhere it to the end face of the hole
portion of the Weight [113].
(b) Insert the Weight [113] into the Base [118], and then insert the Weight Pin [114].
NOTE: At this time, apply Hitachi Motor Grease No. 29 to the Weight Pin [114].
(c) Sandwich the Base [118] between the Leaf Spring [116] and the Spring Holder [117] engaging the
convex portion of the Base [118] with the concave portion of the Spring Holder [117], and then
secure it with the Bolt M5 x 16 [120].
NOTE: At this time, apply Hitachi Motor Grease No. 29 to the tip of the Leaf Spring [116] where
the Weight [113] will contact.
(d) Insert the two Weight Bumpers [119] into the back of the Base [118] so that the rounded portion of
the Weight Bumper [119] contacts the Weight [113].
(e) Fit two Cylinder O-rings (B) [111] around the Weight [113] without twisting.
(5) Reassembly of the lever holder ass’y
(a) Apply Hitachi Motor Grease No. 29 to the O-ring (S-18) <100>, and then attach the O-ring to the
Change Lever <97>. Insert the Lever Spring <98> into the change lever hole.
(b) Apply Hitachi Motor Grease No. 29 to the Steel Ball D4.76 <99> and place them into the concave
portion of the Lever Holder <101>.
(c) Position the Lever Spring <98> and Steel Ball D4.76 <99> properly. Insert the Change Lever <97>
into the hole of the Lever Holder <101> and fix it with the Retaining Ring for D20 Shaft <102>.
NOTE: Rotate the Change Lever <97> to check that the lever clicks at each mode position.
Insert the Change Lever <97> into the Lever Holder <101> straight to avoid damaging
the O-ring.
[111]
[113]
[117]
[120]
[118]
[116]
[116]
[120]
[117]
[112]
[114]
[119]
-11-
• Reassembly of the lever holder ass’y
• Mounting the change plate
<97>
<98>
mark
<99>
<100>
<101>
• Mounting the lever holder ass’y
(6) Mounting the crank cover
(a) Insert the stepped portion of the Change Plate <104> into the notch of the Slider <49>.
NOTE: Be sure to insert the stepped portion in the right direction according to the figure
below.
(b) Mount O-ring (A) <103> to the lower outside of the Lever Holder <101> and adjust the Change Lever
<97> to the neutral mode position (Then the Slider <49> is pushed into the Cylinder Case <24> to
the extent that the pressure of the Clutch Spring <46> is not applied.)
(c) Place the lever holder ass’y and Crank Cover <95> on the Crank Case [121]{111}, and fix them with
the Bolt M5 x 18 <96>.
NOTE: After fixing the parts in place, check that the Change Lever <97> rotates smoothly, that
the Retainer Sleeve <32> does not rotate when changing to “Hammering” mode, and
that the Retainer Sleeve <32> rotates smoothly when setting to “Neutral” mode.
Eccentric pin
Stepped portion of the Change Plate <104>
Notch of the Slider <49>
<47>
Lever holder ass’y
<97> (Neutral mode position)
<46>
<24>
<104>
<49>
-12-
2. Reassembly of the power supply unit
(1) Mounting the rotor ass’y
Before inserting the Rotor <66> into the Housing <59>, mount the Rotor <66> on the Gear Cover
[128]{118}.
NOTE: Without the Gear Cover [128]{118}, the Rotor <66> will be strongly attracted and fixed to
the Stator Sensor PCB Set <58> by its own magnetic force. Be careful not get your hand
caught between the Rotor <66> and the Stator Sensor PCB Set <58>.
Insert the Gear Cover [128]{118} into the Housing <59> in proper direction. Press-fit the Gear Cover
[128]{118} into the Housing <59> as far as it will go by using an appropriate jig, so that the spigot joint
section of the Gear Cover [128]{118} can be pushed evenly.
(2) Wiring of the controller set
(a) Pass the red, white, and black terminals of the Stator Sensor PCB Set <58> through the center
window of the Controller Ass'y <67>, and then connect the terminals with those of the same color on
the Controller Ass'y <67>.
NOTE: Insert each terminal into the mating terminal securely until it contacts the innermost
end.
(b) Pass the 5-wire connector of the Stator Sensor PCB Set <58> through the center window of the
Controller Ass'y <67>, and then connect it to the connector of the Controller Ass'y <67>.
NOTE: Do not reverse the connector orientation.
(c) Connect the 8-wire connector of the Panel Ass'y <72> to the connector of the Controller Ass'y <67>.
NOTE: Do not reverse the connector orientation.
(3) Wiring of the filter PCB set (See the figure on page 14.)
(a) Pass the two terminal-equipped internal wires of the Controller Ass'y <67> through the lower window
of the Back Cover <92>, and then connect the two terminal-equipped internal wires to those of the
Filter PCB Ass'y <78>.
NOTE: Connect the terminal-equipped internal wires to those of the same terminal colors.
Insert each terminal into the mating terminal securely until it contacts the innermost
end.
(b) Connect the two core-exposed internal wires of the Filter PCB Ass'y <78> to Pillar Terminal (A)
<86>.
(4) Wiring of the switch (See the figure on page 14.)
Pass one core-exposed internal wire of the Controller Ass'y <67> through the window of the Back Cover
<92>, and then connect it to the terminal No. 2 or 3 of the Switch <84>.
NOTE: The internal wires are connectable with either terminal.
(5) Wiring of the cord (See the figure on page 14.)
Connect the core-exposed internal wires of the Cord <90> to Pillar Terminal (A) <86>.
NOTE: The internal wires are connectable with either terminal.
(6) Mounting the back cover
(a) Attach the Dust Seal <62> to the Tail Cover <63> and mount it to the Housing <59>. Then fix it with
the Bolts M5 x 14 <61>.
(b) Insert the two shafts on top of the Housing
<59> into the two holes on the Controller Ass'y <67>,
then insert the two shafts on top of the Housing <59> into the two holes of the Panel Ass'y <72>.
(c) Mount the Back Cover <92> without getting the internal wires caught and fix it to the Housing <59>
with four Bolts M5 x 16 <93>. Then fix it to the Crank Case [121]{111} with two Bolts M5 x 14 <61>.
-13-
• Mounting handles (A) and (B)
(7) Mounting handles (A) and (B)
(a) Insert the Handle Shaft <91> into handle (A) and fix it with the Screw D4 x 25 <85>.
(b) Insert the Cord <90> and Cord Armor <87> and then fix the Cord Clip <88> with the Screw D4 x 16
<89>. Bring the flat side of the Cord Clip <88> in contact with the Cord <90> when mounting.
(c) Insert the hinge shaft of handle (A) into the hinge hole of the Back Cover <92> and fix handle (A) to
the Transatory Unit <79> with Distance Piece (B) <74> and the Bolt M5 x 12 <73>.
(d) Fit the Filter PCB Ass'y <78>, connectors that connect Pillar Terminal (A) <86> to the Controller
Ass'y <67>, Switch <84>, and Trigger <83> into the positions shown in the figure.
NOTE: Do not reverse the Filter PCB Ass'y <78> orientation.
(e) Put the internal wires in handle (A) and mount handle (B) without getting the internal wires caught
between handles (A) and (B).
The blue element of the Filter PCB
Ass’y <78> must be on the back
cover side.
<83>
<84>
<86>
<79>
Handle (A)
Connectors that connect
Filter PCB Ass’y <78> to
the Controller Ass'y <67>
Mount handle (B) without protruding
the internal wires and connectors
from the rib of handle (A).
-14-
• Reassembly of the power supply unit
<84>
<72>
<58>
Check the
connector
orientation.
Check the
connector
orientation.
<67>
<78>
<87>
<86>
<90>
Connectable with
either terminal.
Red
Red
Black
Black
Red
Black
White
Connectable with
either terminal.
Connectable with
either terminal.
<90>
-15-
• Specified grease (for the hammer and hammer drill)
Application of Hitachi Motor Grease No. 29 to the weight pin and leaf spring
Fill or apply specified grease (for the hammer and hammer drill) to the following points.
• Fill 65 g of specified grease in the Crank Case [121]{111} on the Connecting Rod <54> side.
• Apply specified grease to the inside and outside of the Cylinder <39>, sliding portion of the Striker <40>,
and O-ring <41> of the Striker <40>.
• Apply specified grease to the inside of the Connecting Rod <54>, outside of the Piston <53>, and O-ring
<51> of the Piston <53>.
• Apply specified grease to the sliding portion of the Second Hammer <35> and O-ring <34> of the Second
Hammer <35>.
• Apply specified grease to the inner lips of the Oil Seal [123]{113}, inside of the Clutch <47>, inner lip of
the Oil Seal <23> in the Cylinder Case <24>, Damper <37>, Retainer Damper (B) <28>, and inside and
outside (polished surfaces) of the Retainer Sleeve <32>.
Fill or apply Hitachi Motor Grease No. 29 to the following points.
• Fill a total of 30 g of grease in the Crank Case [121]{111} on the First Gear [124]{114} side and the Gear
Cover [128]{118} side.
Apply grease to the Weight Pin [114], weight pin inserting portion of the Base [118], Washer [112], sliding
surfaces of the Leaf Spring [116] and Weight [113], and inside of the 6 mm diameter hole.
Apply grease to the pinion portion of the Rotor <66>, Bit Lock <31>, and Needle Pin D8 <33>.
Apply grease to the Steel Ball D4.76 <99> and O-ring (S-18) <100> in the lever holder Ass'y.
CAUTION: Both viscosity and consistency of the specified grease are optimized for the
demolition hammer Models H 60ME and H 60MEY in order to prolong the service
life. Therefore, applying other ordinary grease to the Models H 60ME and H 60MEY
may dramatically shorten the product’s service life.
Lubrication points and types of lubricant
30 g
500 g
[114]
[116]
[113]
[112]
Apply grease to the sliding
portions with the weight.
Apply grease to the sliding
surface of the outside.
Apply grease to both sides and
attach it to the weight.
Net weight Code No.
500 g 980927
30 g 981840
-16-
CAUTION: Be sure to apply TB1401 screw locking agent to the threads of the following screws and
bolts. Otherwise, the screws or bolts loosened by vibration may cause damage to the
product body.
M8
• Hex. Socket Hd. Bolt (W/Flange) M8 x 35 <25>
for mounting the cylinder case ······················································· 19.6 N•m (200 kgf•cm)
M6
• Seal Lock Hex. Socket Hd. Bolt M6 x 45 [122]{112}
for mounting the crank case (housing side) ······································· 9.8 N•m (100 kgf•cm)
• Seal Lock Hex. Socket Hd. Bolt M6 x 22 [126]{116}
for mounting the gear cover (crank case side) ··································· 9.8 N•m (100 kgf•cm)
M5
• Hex. Socket Hd. Bolt (W/Flange) M5 x 18 <96>
for mounting the crank cover ························································· 7.84 N•m (80 kgf•cm)
• Seal Lock Hex. Socket Hd. Bolt M5 x 12 <72>
for mounting handles (A) and (B) ···················································· 4.9 N•m (50 kgf•cm)
• Hex. Socket Hd. Bolt (W/Flange) M5 x 14 <61> and
Hex. Socket Hd. Bolt (W/Flange) M5 x 16 <93>
for mounting the back cover ·························································· 3.92±0.49 N•m (40±5 kgf•cm)
• Hex. Socket Hd. Bolt (W/Flange) M5 x 14 <61>
for mounting the tail cover ····························································· 5.9±1.5 N•m (60±15 kgf•cm)
• Hex. Socket Hd. Bolt (W/Flange) M5 x 12 <18>
for mounting the cylinder case cover ··············································· 3.92±0.49 N•m (40±5 kgf•cm)
• Seal Lock Hex. Socket Hd. Bolt M5 x 30 [115]
for mounting the vibration absorber ················································· 7.84 N•m (80 kgf•cm)
• Seal Lock Hex. Socket Hd. Bolt M5 x 30 [115]
for mounting the weight ································································ 7.84 N•m (80 kgf•cm)
• Seal Lock Hex. Socket Hd. Bolt M5 x 16 [120]
for mounting the spring holder ······················································· 7.84 N•m (80 kgf•cm)
D4
• Tapping Screw (W/Flange) D4 x 16 <89> for mounting the cord clip ······· 1.96±0.49 N•m (20±5 kgf•cm)
• Tapping Screw (W/Flange) D4 x 25 (Black) <85>
for mounting handles (A) and (B) ···················································· 1.96±0.49 N•m (20±5 kgf•cm)
D5
• Hex. Hd. Tapping Screw D5 x 60 <57>
for mounting the stator sensor PCB set ············································ 2.94±0.49 N•m (30±5 kgf•cm)
Tightening torque
+1.96
0
+20
0
+1.96
0
+20
0
+0.98
0
+10
0
+0.98
0
+10
0
+1.96
0
+20
0
+1.96
0
+20
0
+1.96
0
+20
0
+1.96
0
+20
0
-17-
• Wiring diagram
After completing disassembly and repair, measure the insulation resistance and dielectric strength.
Insulation resistance: 7 M or higher (as measured with a 500 VDC megohm tester)
Dielectric strength: 4,000 VAC/1 minute, with no abnormalities --- 220 to 240 V (and 110 V for UK products)
2,500 VAC/1 minute, with no abnormalities --- 110 to 120 V (Except UK products)
After no-load operation for 30 minutes, the no-load current values should be as follows:
Voltage
110 V 120 V 220 V 230 V 240 V
Current max.
5.1 A 4.7 A 2.6 A 2.5 A 2.4 A
Connecting diagram
No-load current value
Insulation test
5-wire
8-wire
Panel Ass’y
<72>
Controller Ass’y
<67>
Stator Sensor
PCB Set <58>
Filter PCB
Ass’y <78>
Switch <84>
3-wire
Pilla
r
terminal
Black
White
Red
Black
White
Red
Black
Red
Black
Red
Black
Red
-18-
*: Model H 60MEY only
MODEL
Variable
Fixed
10 20 30 40 50 60
H 60MEY
H 60ME
General assembly
Transatory
Unit
Back Cover
Weight*
Spring
Holder*
Base*
O-ring
(S-26)
Ball Bearing
6008DDU
Cylinder
Case
O-ring (C)
Retainer
Damper
Holder
Retainer
Damper (B)
Retainer
Sleeve
O-ring
Second
Hammer
Damper
Damper
Holder
Controller
Ass'y
Panel Ass'y
Cylinder
Striker
O-ring
Spring
Holder (B)
Lock Sleeve
Clutch
Slider
O-ring
Piston
Connecting
Rod
Gear Cover
Rotor
Ball Bearing
6202DD
Ball Bearing
6201VV
Crank Shaft
Ball Bearing
6204DD
First Gear
Ball Bearing
629VV
Housing
Stator
Sensor
PCB Set
Crank Case
Work Flow
Handle
(A).(B) Ass'y
Filter
PCB Ass'y
Switch
Cord Armor
Cord
Tail Cover
Crank Cover
Change
Lever
Lever
Holder
Change
Plate
Front Cap
Retainer
Damper (A)
Grip
Bit Holder
Thrust Plate
Spring
Holder (A)
Cylinder
Case Cover
Bit Lock
STANDARD REPAIR TIME (UNIT) SCHEDULES
Model H 60MEY
DEMOLITION HAMMER
LIST NO. F437
2016 · 6 · 13
(E1)
110
112
69
21
22
68
1
2
3
4
5
6
7
8
9
17
18
19
24
25
26
27
28
29
31
32
33
34
35
36
37
38
40
41
39
42
43
44
45
46
47
48
49
50
51
52
53
54
57
58
55
56
61
64
65
66
67
72
61
85
75
73
74
74
73
80
79
77
81
86
87
88
89
90
91
92
93
94
82
83
84
105
106
107
108
109
122
96
95
97
98
99
100
101
102
104
103
125
127
128
126
76
59
78
20
23
30
16
10
85
124
68
70
71
70
121
123
111
115
114
118
119
116
117
120
113
501
502
11
12
13
14
12
15
62
60
63
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Hitachi H 60ME User manual

Type
User manual
This manual is also suitable for

Hitachi H 60MEY is a powerful demolition hammer designed for heavy-duty tasks such as breaking concrete, asphalt, and other hard materials. With its robust construction and advanced technology, it delivers exceptional performance even under the most demanding conditions. The H 60MEY features an ergonomic design to reduce user fatigue and improve comfort during extended use, making it an ideal tool for professionals working in construction or demolition industries.

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