For questions or help with this product contact Tech Support at (570) 546-9663 or techsupport@grizzly.com
MODEL T10813
HEAVY-DUTY 1" EXTENDED
ANVIL AIR IMPACT WRENCH
INSTRUCTIONS
COPYRIGHT © DECEMBER, 2013 BY GRIZZLY INDUSTRIAL, INC.
NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#TSBL16203 PRINTED IN CHINA
Introduction & Identification
The Model T10813 is a heavy-duty impact wrench
that features an extended 1" drive anvil with a
maximum torque of 1880 ft/lbs.
Use Figure 1 and the descriptions below to better
understand the controls and components of this
tool.
Figure 1. Model T10813 identification.
A
B
D
C
E
F
G
A. Extended Anvil. Accepts 1" drive impact
sockets or accessories.
Standard sockets or accessories not
designed to withstand the operational
forces of this impact wrench could break
apart during use and cause serious impact
injuries to the operator or bystanders. ONLY
use impact sockets or accessories rated for
use with this impact wrench.
B. Trigger. Activates rotary action of wrench.
C. Oil Port. Allows addition of lubricant to the oil
reservoir (see Lubrication on Page 4).
D. Air Inlet. Accepts
1
⁄2" NPT connection to the
proper air supply equipment.
E. Regulator Knob. Adjusts speed and direc-
tion of rotary action.
F. Auxiliary Handle. Enables operator to
securely hold impact wrench with both hands
during operation.
G. Grease Port. Allows addition of lubricant to
the grease reservoir.
Specifications
Square Drive..................................................... 1"
Bolt Capacity ................................................ 1
5
⁄8"
Required Air Pressure Range ...........9 0 –115 PSI
Maximum Torque ................................ 1880 ft/lbs
Free Speed ......................................... 3500 RPM
Minimum Air Hose ID ......................................
1
⁄2"
Weight .......................................................26 lbs.
EYE/EAR INJURY HAZARD!
Wear safety glasses and
hearing protection when
using this tool.
DO NOT EXCEED 115 PSI!
Personal injury could
occur.
REMOVE ADJUSTING TOOLS. Never leave
adjustment tools, chuck keys, wrenches, etc. in
or on tool—especially near moving parts. Verify
removal before starting!
INTENDED USAGE. Only use tool for its intended
purpose. Never modify or alter tool for a purpose
not intended by the manufacturer or serious injury
or death may result!
AWKWARD POSITIONS. Keep proper footing
and balance at all times when operating tool. Do
not overreach! Avoid awkward hand positions that
make tool control difficult or increase the risk of
accidental injury.
SAFE HANDLING. To avoid accidental startup,
do not carry tool with hand on trigger, and always
disconnect from air when not in use.
SECURING WORKPIECE. When required, use
clamps or vises to secure workpiece. A secured
workpiece protects hands and frees both of them
to operate the tool.
CHILDREN & BYSTANDERS. Keep children and
bystanders at a safe distance from the work area.
Stop using tool if they become a distraction.
FORCING TOOLS. Use the right tool for the job,
and do not force it. It will do the job safer and bet-
ter at the rate for which it was designed.
MAINTAIN WITH CARE. Follow all maintenance
instructions and lubrication schedules to keep tool
in good working condition. A tool that is improperly
maintained could malfunction, leading to serious
personal injury or death. Only have tool serviced
by qualified service-personnel using matching
replacement parts.
CHECK DAMAGED PARTS. Regularly inspect
tool for any condition that may affect safe opera-
tion. Immediately repair or replace damaged or
mis-adjusted parts before with approved parts
operating tool.
Safety Instructions for Impact Wrenches
TRAINED OPERATORS ONLY. Untrained opera-
tors have a higher risk of being hurt or killed. If you
are unsure of the intended operation, stop using
the tool! Seek formal training or research books
or magazines that specialize in pneumatic tools.
When impact wrench is not being used, discon-
nect from air, and store in out-of-reach location
to prevent unauthorized use—especially around
children. Make workshop kid proof!
DANGEROUS ENVIRONMENTS. Do not use
pneumatic tools in areas that are wet, cluttered, or
have poor lighting. Operating tools in these areas
greatly increases risk of accidents and injury.
MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of this tool.
Never operate under the influence of drugs or
alcohol, when tired, or when distracted.
EYE PROTECTION. Always wear ANSI-approved
safety glasses and a face shield when operating
or observing impact wrenches to reduce the risk
of eye injury or blindness from flying particles.
Everyday eyeglasses are not approved safety
glasses.
WEARING PROPER APPAREL. Do not wear
clothing, apparel or jewelry that can become
entangled in moving parts. Always tie back or
cover long hair. Wear non-slip footwear with
added toe protection to avoid accidental slips and
reduce crushing injuries.
HAZARDOUS DUST. Dust created while using
impact wrenches may cause cancer, birth defects,
or long-term respiratory damage. Be aware of
dust hazards associated with each workpiece
material, and always wear a NIOSH-approved
respirator to reduce your risk.
HEARING PROTECTION. Always wear hearing
protection when operating or observing loud tools.
Extended exposure to this noise without hearing
protection can cause permanent hearing loss.
UNATTENDED OPERATION. Never leave tool
running while unattended. Turn off tool and dis-
connect air hose to ensure all moving parts com-
pletely stop. Do not leave until tool is relieved of
any built-up pressure.
ACCESSORIES. Improperly secured accesso-
ries or those that are not designed for the forces
generated by this tool may detach or break apart,
sending flying debris at the operator or bystand-
ers, which could cause serious personal injury.
Before using any accessories, make sure they
are rated for use with this impact wrench and are
properly secured.
USE BOTH HANDS. Besides the heavy weight
of this tool, rotational forces during operation can
result in loss of control when using only one hand.
Always make sure that you grip the impact wrench
firmly with BOTH hands during operation.
AIR SUPPLY. Use only clean, dry, regulated,
compressed air with this tool. To prevent explo-
sions or poisoning, never use oxygen, carbon
dioxide, combustible gases, or any other gas as a
power source for this tool.
AIR SUPPLY CONNECTION. Do not connect this
tool to an air hose with a connector that allows
the tool to retain air pressure when disconnected.
Even when disconnected from the air supply, the
impact wrench could unexpectedly start up if it
retains air pressure, which could cause injuries
and property damage.
AIR HOSE. Make sure air hose is in good con-
dition and is long enough to reach work without
stretching.
FLAMMABLE MATERIALS. When using impact
wrench, sparks could fly in all directions. If flam-
mable materials or gases are nearby, this could
cause a fire or explosion. Never use the impact
wrench within 50 feet of any flammable material
or gas.
SAFETY DEVICES. Keep in place and in working
order.
VIBRATION PRECAUTIONS. This tool generates
a lot of vibration that can cause long-term physical
damage to the hands, arms, and shoulders. To
reduce the risk of these injuries:
• Do NOT use this tool if you are pregnant or
have previous hand or arm injuries, impaired
blood circulation to the hands, arms, or
shoulders, nervous disorders, or suffer from
Raynaud's Disease.
• If you feel tingling, numbness, or discolor-
ation to the fingers or hands, STOP using this
tool and seek medical attention.
• Smoking reduces blood circulation to the
hands and fingers. Do not smoke prior or dur-
ing use of this tool.
• Wear gloves that are designed to reduce the
effects of vibration.
• Take frequent vibration-free breaks.
• Grip tool as lightly as possible while still main-
taining safe control.
EXPERIENCING DIFFICULTIES. If at any time
you experience difficulties performing the intend-
ed operation, stop using this tool! Contact our
Technical Support at (570) 546-9663.
-4-
T10813 Heavy-Duty Impact Wrench
Operation
1. DISCONNECT TOOL FROM AIR SUPPLY!
2. Install desired impact socket or accessory
onto anvil.
3. Adjust regulator knob to desired speed and
direction.
Note: Speed numbers on right side of regu-
lator knob are for tightening (clockwise rota-
tion), and speed numbers on left side of knob
are for loosening (counterclockwise rotation).
4. Attach proper air supply to impact wrench.
5. Hold tool with both hands—one hand on
trigger handle and the other on the auxiliary
handle.
6. Place attached socket over nut or bolt.
7. Press trigger to activate rotary action.
8. Disconnect tool from air supply when fin-
ished.
Air Supply
Use only clean, dry compressed air. For best
results, use an in-line air regulator and filter setup
similar to the one in Figure 2.
Note: Do not use an in-line lubricator. This tool is
manually lubricated.
Quick
Connector
Quick
Coupler
Air Hose
Quick
Coupler
Quick
Connector
Filter
Regulator
Impact
Wrench
Air
Compressor
Figure 2. Typical in-line air supply setup for this
tool.
Maintenance
Clean and lubricate the impact wrench on a regu-
lar basis to ensure safe and efficient operation.
Cleaning
Wipe down the exterior of the impact wrench with
a clean shop rag and mineral spirits to remove
any grease or debris that could make holding the
tool securely difficult.
Lubrication
Daily. Remove the oil port cap shown in Figure 3
and fill the reservoir with ISO 100 or SAE 30 non-
detergent compressor oil. Replace the cap and
wipe up any spilled oil.
Figure 3. Location of oil port cap.
Oil Port
Cap
Monthly. Use a 4mm hex wrench to remove the
set screw shown in Figure 4, then add one pump
of NLGI#2 or equivalent grease from a grease gun
into the port. Wipe away any excess grease and
replace the set screw.
Figure 4. Location of grease port set screw.
Set Screw
T10813 Heavy-Duty Impact Wrench
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Parts
Please Note: We do our best to stock replacement parts whenever possible, but we cannot guarantee that all parts shown here
are available for purchase. Call (800) 523-4777 or visit our online parts store at www.grizzly.com to check for availability.
-6-
T10813 Heavy-Duty Impact Wrench
Parts List
REF PART # DESCRIPTION REF PART # DESCRIPTION
1 PT10813001 CAP SCREW M8-1.25 X 40 28 PT10813028 ROLL PIN 4 X 8
2 PT10813002 LOCK WASHER 8MM 29 PT10813029 CYLINDER PLATE (REAR)
3 PT10813003 OIL SEAL 30 PT10813030 BALL BEARING 205-OPEN
4 PT10813004 SET SCREW M8-1.25 X 6 31 PT10813031 CYLINDER GASKET (REAR)
5 PT10813005 FRONT HOUSING 32 PT10813032 MAIN HANDLE CASTING
6 PT10813006 LOCK WASHER 6MM 33 PT10813033 CAP SCREW M8-1.25 X 35
7 PT10813007 CAP SCREW M6-1 X 25 34 PT10813034 ROLL PIN 4 X 24
8 PT10813008 AUXILIARY HANDLE 35 PT10813035 ROLL PIN 4 X 22
9 PT10813009 ANVIL BUSHING 36 PT10813036 TRIGGER
10 PT10813010 ANVIL RING 37 PT10813037 REGULATOR BUSHING
11 PT10813011 O-RING 2.3 X 17 38 PT10813038 REGULATOR KNOB
12 PT10813012 INT RETAINING RING 22MM 39 PT10813039 STEEL BALL 4MM
13 PT10813013 ANVIL ASSEMBLY 1" DRIVE 40 PT10813040 COMPRESSION SPRING
14 PT10813014 O-RING 2.5 X 18 41 PT10813041 ROLL PIN 3 X 8
15 PT10813015 HAMMER HOUSING 42 PT10813042 ROLL PIN 4 X 28
16 PT10813016 HAMMER 43 PT10813043 O-RING 1.7 X 7
17 PT10813017 HAMMER CAM 44 PT10813044 OIL CAP
18 PT10813018 SPACER 45 PT10813045 THROTTLE VALVE BUSHING
19 PT10813019 CYLINDER GASKET (FRONT) 46 PT10813046 AIR SEAL (RUBBER)
20 PT10813020 MOTOR HOUSING 47 PT10813047 THROTTLE VALVE PLUNGER
21 PT10813021 LOCK NUT M8-1.25 48 PT10813048 STEEL BALL 13MM
22 PT10813022 BALL BEARING 6205ZZ 49 PT10813049 COMPRESSION SPRING
23 PT10813023 CYLINDER PLATE (FRONT) 50 PT10813050 O-RING 3 X 24
24 PT10813024 ROTOR 51 PT10813051 AIR INLET CONNECTOR 1/2" NPT
25 PT10813025 ROTOR VANE 52 PT10813052 HOUSING CUSHION (RUBBER)
26 PT10813026 ROLL PIN 5 X 14 53 PT10813053 FLAT WASHER 8MM
27 PT10813027 CYLINDER
T22457—Bostitch All-Season Synthetic Air
Compressor Oil
• Formulated for high speed and temperature
conditions • Contains rust and oxidation inhibitors
• Has anti-wear additives specially formulated for
cylinder-type applications • Synthetic oil protects
better and lasts longer than conventional oil.
Figure 5. T22457 Bostitch Air Compressor Oil.
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