Universal Tool UT8641C Manual

Universal Tool a Division of Florida Pneumatic Mfg. Corp.
851 Jupiter Park Lane, Jupiter FL 33458
Universal Air Tools Company Ltd.
Unit 8 Lane End Industrial Park, High Wycombe, HP14 3BY, UK
Universal Tool
™
IMPACTS
General Safety Information & Replacement Parts
WARNING: Risk of injury to persons. Read and
understand operation instructions. Always become familiar
with all the instructions and warnings before operating any
pneumatic tool.
TABLE OF CONTENTS
General Safety Information ...........................2
Air Compressor and Air Tool Safety.................. . 2-3
Tool Specifications ..................................3
Installation ........................................4
Maintenance / Lubrication ............................4
Warranty ..........................................5
Troubleshooting ....................................5
Service Parts.................................... . 6-7
UT8641C
UT8641S (Spline Drive)
1" Impact Wrench

Universal Tool a Division of Florida Pneumatic Mfg. Corp.
851 Jupiter Park Lane, Jupiter FL 33458
Universal Air Tools Company Ltd.
Unit 8 Lane End Industrial Park, High Wycombe, HP14 3BY, UK
7.2.2.3 GENERAL SAFETY RULES
-
7.2.2.4 PROJECTILE HAZARDS
7.2.2.5 ENTANGLEMENT HAZARDS
-
7.2.2.6 OPERATING HAZARDS
7.2.2.7 REPETITIVE MOTIONS HAZARDS
-
7.2.2.8 ACCESSORY HAZARDS
7.2.2.9 WORKPLACE HAZARDS
-
7.2.2.10 DUST AND FUME HAZARDS
-
7.2.2.11 NOISE HAZARDS
-
-
7.2.2.12 VIBRATION HAZARDS
7.2.3 ADDITIONAL SAFETY INSTRUCTIONS FOR PNEUMATIC
POWER TOOLS - AIR SUPPLY & CONNECTION HAZARDS
-
-
-
Safety Information

Universal Tool a Division of Florida Pneumatic Mfg. Corp.
851 Jupiter Park Lane, Jupiter FL 33458
Universal Air Tools Company Ltd.
Unit 8 Lane End Industrial Park, High Wycombe, HP14 3BY, UK
Safety Information (continued)
AIR COMPRESSOR AND AIR TOOL SAFETY
1. Risk of Bursting. Do not adjust the regulator to result in output
pressure greater than the marked maximum pressure of this air
tool.
2. Ensure the hose is free of obstructions or snags. Entangled or
snarled hoses can cause loss of balance or footing and may
become damaged.
3. Never leave a tool unattended with the air hose attached.
4. Do not operate this tool if it does not contain a legible warning
label.
5. Do not continue to use a tool or hose that leaks air or does not
function properly.
6. Never direct a jet of compressed air toward people or animals.
7. Protect your lungs. Wear a face or dust mask if the operation is
dusty.
WARNING: Some dust created by power sanding, sawing,
grinding, drilling and other construction activities contains
chemicals known to cause cancer, birth defects or other
reproductive harm. Some examples of these chemicals are:
Lead from lead based paint, crystalline silica from bricks
and cement and other masonry products, arsenic and
chromium from chemically-treated lumber.
Your risk from those 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 equipment, such as dust masks that
Important Warnings - Impacts
1. Eye protection and hearing protection and safety gloves must always be worn when operating an impact wrench or impact
driver.
2. When using heavy impact sockets or sockets on impact wrenches with 3/4” drive anvils or larger, a socket retaining ring
and pin should be used to prevent the socket falling off and causing injury.
3. Use only impact sockets and accessories. Only use sockets designated “FOR USE WITH IMPACT WRENCHES”, hand tool
damage and replace when necessary.
Accessory Hazards
4. Disconnect the assembly power tool for threaded fasteners from the energy supply before changing the inserted tool or
accessory.
5. Do not touch sockets or accessories during impacting as this increases the risk of cuts, burns or vibration injuries.
6. Use only sizes and types of accessories and consumables that are recommended by the assembly power tool for threaded
fasteners manufacturer; do not use other types or sizes of accessories and consumables.
Vibration Level (m/sec2): 23.3 Noise Level (dBA): 105
Model Free Speed Bolt Square Impacts Max, Torque Weight Length Air Cons
Number (RPM) Capacity Drive Per Min. ft.lbs. @ 90 psi (lbs) (In.) CFM
UT8641C/S 4,300 1-1/2" 1" / #5 1120 2800 23.3 14.3 6.3

Universal Tool a Division of Florida Pneumatic Mfg. Corp.
851 Jupiter Park Lane, Jupiter FL 33458
Universal Air Tools Company Ltd.
Unit 8 Lane End Industrial Park, High Wycombe, HP14 3BY, UK
Installation
1 Cleaning the air hose
A 3/8" air hose is required, with a maximum length of 25 ft.
Clean the air hose of accumulated dust and moisture
before connecting it to the air supply.
NOTE: If a longer air hose is required, connect a 1/2" air
hose to the 3/8" air hose to ensure the impact wrench has
the necessary air supply.
Recommended Air Line Set-Up
Part Description
A Air Tool
B Quick Plug
C Quick Coupler
D Air Hose
E In-line Regulator
F In-line Lubricator
G In-line Filter
H Air Compressor
Ensure the air line is shut-off and drained of air before removing this tool for service or changing sockets. This will prevent the tool from
operating if the throttle is accidentally engaged.
LUBRICATION
Adjust the in-line lubricator by placing a sheet of paper next to the tool’s exhaust ports and holding the throttle open approximately 30
seconds. The lubricator is properly set when a light stain of oil collects on the paper.
If it is necessary to store the tool for an extended period of time (overnight, weekend, etc.), generously lubricate the tool through the air
inlet. Run the tool for approximately 30 seconds to ensure the oil is evenly distributed throughout the tool. Store the tool in a clean and
dry environment.
Recommended lubricants: Air tool oil or any other high grade turbine oil containing moisture absorbent, rust inhibitors, metal wetting
agents, and an EP (extreme pressure) additive.
Maintenance

Universal Tool a Division of Florida Pneumatic Mfg. Corp.
851 Jupiter Park Lane, Jupiter FL 33458
Universal Air Tools Company Ltd.
Unit 8 Lane End Industrial Park, High Wycombe, HP14 3BY, UK
Warranty
Limited Warranty: Universal Tool warrants its tools to be free from defects in material and workmanship for one year from the date of
Tool or its authorized service centers. If a UT tool proves defective in material or workmanship within one year after purchase, return
it to any authorized service center or Universal Tool freight prepaid. Please enclose your name, address and adequate proof of date of
purchase and a short description of the defect. Universal Tool will,at its option, repair or replace defective tools free of charge. Repairs or
replacements are warranted as described above for the remainder of the original warranty period. Universal Tool's sole liability and your
exclusive remedy under this warranty is limited to repair or replacement of the defective tool.
There are no other warranties expressed or implied and Universal Tool shall not be liable for incidental, consequential or special damages,
or any other damages,costs or expenses excepting only the cost or expense of repair or replacement as described above.
Troubleshooting
Problem Possible Cause Solution
The tool runs slowly or will not
operate.
There is grit or gum in the tool. Flush the tool with air tool oil or gum solvent.
The tool is out of oil. Lubricate the tool according to the lubrication
instructions in this manual.
The air pressure is low. Adjust the regulator on the tool to the
maximum setting.
Adjust the compressor regulator to the tool’s
maximum setting of 90 psi.
The air hose leaks.
tape if leaks are found.
The air pressure drops. Ensure the hose is the proper size. Long
hoses or tools using large volumes of air may
require a hose with an I.D. of ½" or larger
depending on the total length of the hose.
Do not use a multiple number of hoses
connected together with a quick connect
and reduces the tool power. Directly connect
the hoses together.
There is a worn rotor blade in the motor. Replace the rotor blade.
There is a worn ball bearing in the motor. Remove and inspect the bearing for rust, dirt, and
grit. Replace or clean and grease the bearing with
bearing grease.
There is moisture blowing out
of the tool’s exhaust.
There is water in the tank. Drain the tank. (See the air compressor manual
for instructions.) Lubricate the tool and run it until
water is not evident. Lubricate the tool again and
run for 1-2 seconds.
The tool impacts slowly or not
at all.
The tool needs lubricating. Lubricate the air motor and the impact mechanism
according to the lubrication instructions in this
manual.
The tool regulator setting is in the wrong position. Adjust the regulator on the tool to the maximum
setting.
The tool impacts rapidly, but
will not remove bolts.
The tool has a worn impact mechanism. Replace the worn impact mechanism components.
The tool does not impact. The impact mechanism is broken. Replace the broken impact mechanism
components.

Universal Tool a Division of Florida Pneumatic Mfg. Corp.
851 Jupiter Park Lane, Jupiter FL 33458
Universal Air Tools Company Ltd.
Unit 8 Lane End Industrial Park, High Wycombe, HP14 3BY, UK
UT8641C
Service Parts / Exploded View Drawing
55
56
57
Index
No. Part No. Description Qty
Index
No. Part No. Description Qty
1 00-4241 Oil Seal 1 30 W331-008D Rotor Blade 6
2 00-0603 Set Screw 1 31 W331-009 Rear End Plate 1
3 W331-002 Hammer Case 1 32 00-2394 Ball Bearing 1
4 00-0118 Cap Screw 8 33 W331S-032 Rear Gasket 1
5 00-1808 Spring Washer 4 34 W331S-004 Hand Frame 1
6 W331-041 Handle Clamp 1 35 W331S-020 Reverse Valve Bushing 1
7 W331-039 Side Handle 1 36 00-4124 O-Ring 1
8 00-0119 Cap Screw 4 37 00-3307 Spring Pin 1
9 00-1803 Spring Washer 4 38 315S-022B Reverse Knob 1
10 00-3905 Hex. Wrench (5mm) 1 39 315S-021 Reverse Valve 1
11 W331-010 Anvil Bushing 1 40 322-023-B Spring 1
12 W331-011FA8 Anvil 1 41 00-3802 Steel Ball 1
13 W331-018 Spring 1 42 00-3338 Spring Pin 2
14 W331-014 Washer 1 43 315S-026 Valve Bushing 1
15 W331-012 Hammer Case 1 44 315S-027 Valve Stem (Inner) 1
16 W331-013 Shaft 1 45 568-026 Bushing 1
17 00-3806 Steel Ball 1 46 00-3809 Steel Ball 1
18 W331-015 Cam 1 47 315S-029 Spring 1
19 W331-017 Washer 1 48 00-4188 O-Ring 1
20 W331-016 Gear 1 315F-025C Air Inlet (1/2" NPT) 1
21 W331-022 Front Gasket 1 315F-025D Air Inlet (1/2 BSP) 1
W331S-001 Motor Housing 1 50 00-3207 Snap Ring 2
00-4303 Inserts Recoil 8 51 315S-034 Pin 2
23 W331S-108 Bushing 2 52 00-3320 Spring Pin 2
24 W331S-102 Hanger 1 53 315S-024B Inner Trigger 1
25 00-2395 Ball Bearing 1 54 00-1804 Spring Washer 4
26 W331-005 Front End Plate 1 55 0-421021 Socket Retainer "O" Ring 1
27 W331-006 Cylinder 1 56 0-511087 Socket Retainer Pin 1
28 W331-025 Pin 1 57 315S-025 Trigger Rubber 1
29 W331-007 Rotor 1
22
49

Universal Tool a Division of Florida Pneumatic Mfg. Corp.
851 Jupiter Park Lane, Jupiter FL 33458
Universal Air Tools Company Ltd.
Unit 8 Lane End Industrial Park, High Wycombe, HP14 3BY, UK
UT8641S (Spline Drive)
Service Parts / Exploded View Drawing
59
Index
No. Part No. Description Qty
Index
No. Part No. Description Qty
1 00-4241 Oil Seal 1 31 W331-006 Cylinder 1
2 00-0603 Set Screw 1 32 W331-025 Pin 1
3 W331-002 Hammer Case 1 33 W331-007 Rotor 1
4 00-0118 Cap Screw 8 34 W331-008D Rotor Blade 6
5 00-1808 Spring Washer 4 35 W331-009 Rear End Plate 1
6 W331-041 Handle Clamp 1 36 00-2394 Ball Bearing (R10) 1
7 W331-039 Side Handle 1 37 W331S-032 Rear Gasket 1
8 00-0119 Cap Screw 4 38 W331S-004 Hand Frame 1
9 00-1803 Spring Washer 4 39 W331S-020 Reverse Valve Bushing 1
10 00-3905 Hex. Wrench (5mm) 1 40 00-4124 O-Ring 1
11 W331-010 Anvil Bushing 1 41 00-3307 Sping Pin 1
12 W331S-P-042 Lock Pin 1 42 315S-022B Reverse Knob 1
13 W331S-P-044 Plug 1 43 315S-021 Reverse Valve 1
14 W331S-P-043 Spring 1 44 322-023-B Spring 1
15 W331S-P-045 Spring 1 45 00-3802 Steel Ball 1
16 W331S-011SA #5 Spline Anvil 1 46 00-3338 Spring Pin 2
17 W331-018 Spring 1 47 315S-026 Valve Bushing 1
18 W331-014 Washer 1 48 315S-027 Valve Stem (Inner) 1
19 W331-012 Hammer 1 49 568-026 Bushing 1
20 W331-013 Shaft 1 50 00-3809 Steel Ball 1
21 00-3806 Steel Ball 1 51 315S-029 Spring 1
22 W331-015 Cam 1 52 00-4188 O-Ring 1
23 W331-017 Washer 1 315F-025C Air Inlet (1/2" NPT) 1
24 W331-016 Gear 1 315F-025D Air Inlet (1/2 BSP) 1
25 W331-022 Front Gasket 1 54 00-3207 Snap Ring 2
W331S-001 Motor Housing 1 55 315S-034 Pin 2
0-4303 Inserts Recoil 8 56 00-3320 Spring Pin 2
27 W331S-108 Bushing 2 57 315S-024b Inner Trigger 1
28 W331S-102 Hanger 1 58 00-1804 Spring Washer 4
29 00-2395 Ball Bearing 1 59 315S-025 Trigger Rubber 1
30 W331-005 Front End Plate 1
26
53

Universal Tool
™
Retain this manual for future use.
Questions, problems, missing parts?
Call Customer Service
0900-1700 Monday-Friday
01-494-883300
Universal Air Tools Company Ltd.
Unit 8 Lane End Industrial Park
High Wycombe, HP14 3BY,UK
[email protected]
www.universal.co.uk
Call Customer Service
8 a.m.-5 p.m., EST, Monday-Friday
1-800-356-3392
Universal Tool a Division of
Florida Pneumatic Mfg. Corp.
851 Jupiter Park Lane, Jupiter FL 33458
www.Florida-Pneumatic.com
US UK