MODEL T20797
52" FOOT SHEAR
OWNER'S MANUAL
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
This manual provides critical safety instructions on the proper setup,
operation, maintenance and service of this machine/equipment.
Failure to read, understand and follow the instructions given in this
manual may result in serious personal injury, including amputation,
electrocution or death.
The owner of this machine/equipment is solely responsible for its
safe use. This responsibility includes but is not limited to proper
installation in a safe environment, personnel training and usage
authorization, proper inspection and maintenance, manual availability
and comprehension, application of safety devices, blade/cutter integ-
rity, and the usage of personal protective equipment.
The manufacturer will not be held liable for injury or property damage
from negligence, improper training, machine modifications or misuse.
Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement and other masonry products.
• Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
Work in a well ventilated area, and work with approved safety equip-
ment, such as those dust masks that are specially designed to filter
out microscopic particles.
Table of Contents
INTRODUCTION ............................................................................................................................... 2
SECTION 1: SAFETY ....................................................................................................................... 5
SECTION 2: SET UP ........................................................................................................................ 8
SECTION 3: OPERATIONS ........................................................................................................... 14
SECTION 4: ACCESSORIES ......................................................................................................... 18
SECTION 5: MAINTENANCE......................................................................................................... 20
SECTION 6: SERVICE ................................................................................................................... 21
SECTION 7: PARTS ....................................................................................................................... 23
WARRANTY AND RETURNS ........................................................................................................ 29
INTRODUCTION
Contact Info
Functional OverviewManual Accuracy
your machine may not exactly match
the manual
www.grizzly.com
Figure 1.
A.
B.
C.
D.
E.
F.
G.
H.
Identification
model T20797
52" SheeT meTal Shear
Customer Service #: (570) 546-9663 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901
maChINe daTa
SheeT
Design Type ........................................................................................................................................Foot Shear / Floor Model
Product Dimensions:
Shipping Dimensions .......................................................................................................................................66 " x 39" x 47
5
⁄8"
Shipping Weight ........................................................................................................................................................... 1144 lbs.
Overall Dimensions (L x W x H) .........................................................................................................................74" x 62" x 41"
Weight .......................................................................................................................................................................... 1012 lbs.
Footprint ................................................................................................................................................................. 61
3
⁄4" x 21
1
⁄2"
Capacities:
Shear ................................................................................................................................................... 52" @ 18 ga. Mild Steel"
Front Stop Scale Range .................................................................................................................................................. 0"–24"
Rear Stop Scale Range ................................................................................................................................................... 0"–30"
Construction:
Shear Blades ........................................................................................................................Precision Ground Hardened Steel
Frame ........................................................................................................................................................................... Cast-Iron
Table ........................................................................................................................................................... Machined Cast-Iron
Hold-Down Clamp ........................................................................................................................................................ Cast-Iron
Features:
.............................................................................................................................. Front Stops & Micro-Adjustable Rear Stops
................................................................................................................................................................. Front Extension Arms
Model T20797 Page 1 of 1
Machine Data Sheet
Safety Instructions for Machinery
4. ALWAYS USE HEARING PROTECTION
WHEN OPERATING MACHINERY.
Machinery noise can cause permanent
hearing loss.
5. WEAR PROPER APPAREL. DO NOT
wear loose clothing, gloves, neckties, rings,
or jewelry that can catch in moving parts.
Wear protective hair covering to contain
long hair and wear non-slip footwear.
6. NEVER OPERATE MACHINERY WHEN
TIRED OR UNDER THE INFLUENCE OF
DRUGS OR ALCOHOL. Be mentally alert
at all times when running machinery.
1. READ THE ENTIRE MANUAL BEFORE
STARTING MACHINERY. Machinery pres-
ents serious injury hazards to untrained
users.
2. ALWAYS USE ANSI APPROVED
SAFETY GLASSES WHEN OPERATING
MACHINERY. Everyday eyeglasses only
have impact resistant lenses—they are
NOT safety glasses.
3. ALWAYS WEAR A NIOSH APPROVED
RESPIRATOR WHEN OPERATING
MACHINERY THAT PRODUCES DUST.
Most types of dust (wood, metal, etc.) can
cause severe respiratory illnesses.
For Your Own Safety, Read Instruction
Manual Before Operating this Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions. This
manual uses a series of symbols and signal words intended to convey the level of importance
of the safety messages. The progression of symbols is described below. Remember that safety
messages by themselves do not eliminate danger and are not a substitute for proper accident
prevention measures.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
This symbol is used to alert the user to useful information about
proper operation of the machine.
NOTICE
Safety Instructions for Machinery
SECTION 1: SAFETY
7. ONLY ALLOW TRAINED AND PROP-
ERLY SUPERVISED PERSONNEL TO
OPERATE MACHINERY. Make sure
operation instructions are safe and clearly
understood.
8. KEEP CHILDREN AND VISITORS AWAY.
Keep all children and visitors a safe dis-
tance from the work area.
9. MAKE WORKSHOP CHILDPROOF. Use
padlocks, master switches, and remove
start switch keys.
10. NEVER LEAVE WHEN MACHINE IS
RUNNING. Turn power OFF and allow all
moving parts to come to a complete stop
before leaving machine unattended.
11. DO NOT USE IN DANGEROUS
ENVIRONMENTS. DO NOT use machin-
ery in damp, wet locations, or where any
flammable or noxious fumes may exist.
12. KEEP WORK AREA CLEAN AND WELL
LIGHTED. Clutter and dark shadows may
cause accidents.
13. USE A GROUNDED EXTENSION CORD
RATED FOR THE MACHINE AMPERAGE.
Grounded cords minimize shock hazards.
Undersized cords create excessive heat.
Always replace damaged extension cords.
14.
ALWAYS DISCONNECT FROM POWER
SOURCE BEFORE SERVICING
MACHINERY. Make sure switch is in
OFF
position before reconnecting.
15. MAINTAIN MACHINERY WITH CARE.
Keep blades sharp and clean for best and
safest performance. Follow instructions for
lubricating and changing accessories.
16. MAKE SURE GUARDS ARE IN PLACE
AND WORK CORRECTLY BEFORE
USING MACHINERY.
Safety Instructions for Machinery
17. REMOVE ADJUSTING KEYS AND
WRENCHES. Make a habit of checking for
keys and adjusting wrenches before turn-
ing machinery ON.
18. CHECK FOR DAMAGED PARTS
BEFORE USING MACHINERY. Check for
binding or misaligned parts, broken parts,
loose bolts, and any other conditions that
may impair machine operation. Repair or
replace damaged parts before operation.
19. USE RECOMMENDED ACCESSORIES.
Refer to the instruction manual for recom-
mended accessories. Improper accesso-
ries increase risk of injury.
20. DO NOT FORCE MACHINERY. Work at
the speed for which the machine or acces-
sory was designed.
21. SECURE WORKPIECE. Use clamps or
a vise to hold the workpiece when practi-
cal. A secured workpiece protects your
hands and frees both hands to operate the
machine.
22. DO NOT OVERREACH. Maintain stability
and balance at all times.
23. MANY MACHINES CAN EJECT
WORKPIECES TOWARD OPERATOR.
Know and avoid conditions that cause the
workpiece to "kickback."
24. ALWAYS LOCK MOBILE BASES
(IF USED) BEFORE OPERATING
MACHINERY.
25. CERTAIN DUST MAY BE HAZARDOUS
to the respiratory systems of people and
animals, especially fine dust. Be aware of
the type of dust you are exposed to and
always wear a respirator designed to filter
that type of dust.
Additional Safety Instructions for Foot
Shears
7. EXTENSION ARMS.
8. COMFORTABLE CUTTING OPERATIONS.
9. EXPERIENCING DIFFICULTIES.
10. B L A DE AD J U ST ME NT S AN D
MAINTENANCE.
1. GUARDS.
2. FOOTING.
3. HANDS AND FINGERS.
4. OPERATOR POSITION.
5. CAPACIT Y.
6. PROPER USE.
No list of safety guidelines can be complete.
Every shop environment is different. Always
consider safety first, as it applies to your
individual working conditions. Use this and
other machinery with caution and respect.
Failure to do so could result in serious per-
sonal injury, damage to equipment, or poor
work results.
Like all machinery there is potential danger
when operating this machine. Accidents are
frequently caused by lack of familiarity or
failure to pay attention. Use this machine
with respect and caution to lessen the pos-
sibility of operator injury. If normal safety
precautions are overlooked or ignored, seri-
ous personal injury may occur.
Wear safety glasses dur-
ing the entire set up pro-
cess!
This machine presents
serious injury hazards
to untrained users. Read
through this entire manu-
al to become familiar with
the controls and opera-
tions before starting the
machine!
Setup Safety
SECTION 2: SET UP
please immediately call Customer Service at
(570) 546-9663for advice.
Otherwise, filing a freight claim can be difficult.
Unpacking
The Model T20797 is
an extremely heavy
machine. Serious per-
sonal injury may occur if
safe moving methods are
not followed. To be safe,
you will need assistance
and power equipment
when moving the ship-
ping crate and remov-
ing the machine from the
crate.
Description Qty
Items Needed for Set
Up
Inventory
Box 1: (Figure 2) Qty
A.
B.
C.
D.
E.
Figure 2.
SUFFOCATION HAZARD!
Immediately discard all plas-
tic bags and packing materi-
als to eliminate choking/suf-
focation hazards for children
and animals.
NOTICE
Some hardware/fasteners on the inventory
list may arrive pre-installed on the machine.
Check these locations before assuming that
any items from the inventory list are miss-
ing.
Figure 4.
Floor Load
Machine Data Sheet
Placement Location
Figure 4
Site Considerations
Children and visitors may be
seriously injured if unsuper-
vised around this machine.
Lock entrances to the shop
or disable start switch or
power connection to prevent
unsupervised use.
Figure 3
For optimum performance, clean all moving
parts or sliding contact surfaces.
Clean Up
Gasoline and petroleum
products have low flash
points and can explode
or cause fire if used to
clean machinery. DO
NOT use these products
to clean the machinery.
Many cleaning solvents
are toxic if inhaled.
Minimize your risk by only
using these products in a
well ventilated area.
G2544—Solvent Cleaner & Degreaser
H9692—Orange Power Degreaser
Figure 3.
Moving & Placement
Figure 5.
Figure 6
Mounting to Shop
Floor
NOTICE
Anchor studs are stronger and more per-
manent alternatives to lag shield anchors;
however, they will stick out of the floor,
which may cause a tripping hazard if you
decide to move your machine.
Figure6
Figure 5. Lifting the foot shear.
Assembly
To assemble the foot shear:
1.
Figure 7
4.
5.
6.
7.
Figure 9
Figure 9. Foot pedal and front extension arms.
Figure 7.
2.
3.
Figure
8
Figure 8.
3.
Figure11
Figure 11.
To install the rear extension rods (optional):
1.
2. Figure 10
Figure 10.
Operation Safety
Basic Controls
SECTION 3: OPERATIONS
CRUSHING AND SEVERING
HAZARD!
Keep hands and fingers out
of hold-down and blade path
when shearing or serious
injury will occur!
To reduce the risk of
serious injury when using
this machine, read and
understand this entire
manual before beginning
any operations.
NOTICE
If you have never used this type of machine
or equipment before, WE STRONGLY
RECOMMEND that you read books, trade
magazines, or get formal training before
beginning any projects. Regardless of the
content in this section, Grizzly Industrial
will not be held liable for accidents caused
by lack of training.
Figures 1213
Foot Pedal:
Front and Rear Extensions:
Rear Stops:
Bodily injury could result from using this
machine. Always wear safety goggles,
leather work boots, and heavy duty leather
work gloves when operating this machine or
whenever handling metal.
Figure 13. Basic controls (continued).
Figure 12. Basic controls.
Stops & Guides
Operation Overview
Figure 14
Shearing Tips
Figure 15.
Figure 14.
To use the foot shear:
1.
2.
Step 1
3.
Finger Guard
NOT
Hold-Down
Adjustment
Items Needed Qty.
To adjust the hold-down:
1.
Figure 16
Figure 16.
2.
3. Step 2
4.
Tip: To avoid scratching the surface of your
workpiece, apply thin rubber pads to the bottom
of the hold-down fingers.
Tools Required Qty.
To perform the blade adjustment:
1.
Figure17
Blade Adjustment
Figure 17.
2.
3.
NOTICE: The moving blade should never
overlap the fixed blade. This will cause dam-
age to both.
7. Step 6
8.
Figure 18.
4.
Adjusting Blade Bow
5.
6.
Figure18
Note: 0.002" is a good starting point for
most operations. The gap width will change,
however, depending on the type and gauge
of the material being sheared. This is a trial-
and-error process. Test with scrap pieces
until you achieve satisfactory results.
SECTION 4: ACCESSORIES
Figure 19.
G5618—Deburring Tool with two Blades
G5619—Extra Aluminum Blades
G5620—Extra Brass and Cast Iron Blade
H5614—Wire Gauge US Standard
Figure 21.
Figure 20.
H3153—Pigskin Palm Gloves
H3154—Lined Pigskin Palm Gloves
H3154
H3153
Figure 22.
G5562—SLIPIT
®
1 Qt. Gel
G5563—SLIPIT
®
12 oz Spray
G2871—Boeshield
®
T-9 12 oz Spray
G2870—Boeshield
®
T-9 4 oz Spray
H3788—G96
®
Gun Treatment 12 oz Spray
H3789—G96
®
Gun Treatment 4.5 oz Spray
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