Fairmont H6510A User manual

999 1596.0 REV 3 © 2001 Greenlee Textron 2/01
H6510A
IMPACT WRENCH
Serial Codes FJR, FJT, FJV, and FPH
SERVICE MANUAL
Read and understand all of the instructions and
safety information in this manual before operating
or servicing this tool.

Greenlee Textron / Subsidiary of Textron Inc. 24455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A ImpactWrench
KEEPTHIS MANUAL
Table of Contents
Safety ........................................................................... 2
Purpose........................................................................ 2
Other Publications........................................................ 2
Important Safety Information.................................... 3–4
Disassembly................................................................. 5
Inspection..................................................................... 5
Assembly...................................................................... 6
Illustration and Parts Lists ........................................ 7–9
Safety
Safety is essential in the use and maintenance of
Fairmont tools and equipment. This instruction manual
and any markings on the tool provide information for
avoiding hazards and unsafe practices related to the
use of this tool. Observe all of the safety information
provided.
Purpose
This manual is intended to familiarize personnel with the
safe operation and maintenance procedures for the
following Fairmont tools:
H6510A (42268) Serial Code FJR
H6510A1 (42269) Serial Code FJT
H6510A2 (42270) Serial Code FJV
H6510A3 (43646) Serial Code FPH
Keep this manual available to all personnel.
Replacement manuals are available upon request at no
charge.
Loctite and 242 are registered trademarks of Loctite
Corporation.
Other Publications
Operation Manual: Publication 999 3026.9
Specifications and Parts: Publication: 999 3095.1
SAE Standard J1273 (Hose and Hose Assemblies):
Publication 999 3032.3

Greenlee Textron / Subsidiary of Textron Inc. 34455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A ImpactWrench
IMPORTANT SAFETY INFORMATION
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection can
result in serious eye injury from
flying debris or hydraulic oil.
Skin injection hazard:
Oil under pressure easily punctures
skin causing serious injury, gan-
grene or death. If you are injured by
escaping oil, seek medical attention
immediately.
• Do not use hands to check for
leaks.
• Do not hold hose or couplers while
the hydraulic system is pressurized.
• Depressurize the hydraulic system
before servicing.
This symbol is used to call your attention to hazards
or unsafe practices which could result in an injury
or property damage. The signal word, defined below,
indicates the severity of the hazard. The message
after the signal word provides information for
preventing or avoiding the hazard.
Hazards or unsafe practices which, if not avoided,
MAY result in injury.
Hazards which, if not avoided, COULD result in severe
injury or death.
Immediate hazards which, if not avoided, WILL result
in severe injury or death.
SAFETY
ALERT
SYMBOL
Read and understand all of the
instructions and safety information in
this manual before operating or
servicing this tool. Refer also to the
following manuals, which are listed
under Other Publications:
• Operation Manual
• Specifications and Parts Manual
Failure to observe this warning can
result in severe injury or death.
Tool, accessory, and other compo-
nents may be hot during and after
operation. Allow to cool before
handling, or handle with heat-
resistant gloves.
Failure to observe this warning
could result in severe injury.

Greenlee Textron / Subsidiary of Textron Inc. 44455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A ImpactWrench
IMPORTANT SAFETY INFORMATION
Do not exceed the maximum hydraulic flow,
pressure relief or back pressure listed in the
Specifications and Parts manual.
Failure to observe this warning can result in severe
injury or death.
Notes: Keep all decals clean and legible. Replace
when necessary.
When disposing of any components (hydraulic hoses,
hydraulic fluid, worn parts, etc.), do so in accordance
with federal, state and local laws or ordinances.
Do not disconnect tool, hoses or fittings while the
power source is running or if the hydraulic fluid is
hot. Hot hydraulic fluid can cause serious burns.
Hydraulic oil can cause skin irritation.
•Handle the tool and hoses with care to prevent
skin contact with hydraulic oil.
•In case of accidental skin contact with hydraulic
oil, wash the affected area immediately to
remove the oil.
Failure to observe these precautions can result in
injury.
Do not reverse hydraulic flow. Operation with
hydraulic flow reversed can cause tool malfunction.
Connect the pressure (supply) hose and tank
(return) hose to the proper ports.
Failure to observe this warning can result in severe
injury or death.

Greenlee Textron / Subsidiary of Textron Inc. 54455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A ImpactWrench
Disassembly
Complete disassembly of the tool is not recommended.
If a complete overhaul is necessary, return the tool to
your nearest authorized Fairmont distributor or to
Fairmont.
The disassembly procedure is divided into sections of
the tool. Disassemble only the section(s) necessary to
complete the repair.
Disassemble the tool on a flat, clean surface. Take care
not to lose or damage any parts that may fall free during
disassembly.
Motor and Hammer Case
1. Scribe a line across the motor cap (4) and handle
(2) to align parts correctly during assembly.
2. Remove eight cap screws (14) and remove motor
cap from handle. Remove gasket (12) and dowels
(13).
H6510A2 and H6510A3 only: Remove O-ring (50).
Drive out pin (49) and remove quick-change adapter
(48).
3. Loosen the cap screws (46). Remove the hammer
case (29). Pull the hammer assembly (34–45) from
the motor and handle assembly.
Directional Spool
1. Remove the buttons (23) from the directional spool
(22).
2. With a brass drift pin or wooden dowel, tap one end
of the spool to slide it partially out of the handle to
expose either O-ring (18). Remove the exposed
O-ring. Remove the spool by pushing it back though
the handle. Remove the other O-ring.
Note: Attempting to force the directional spool
through the bore against the O-ring will damage the
O-ring and could allow particles of O-ring to get into
the motor.
Actuating Spool
1. Remove the machine screw (26) and elastic stop
nut (27).
2. Remove the connecting link (28) and lever (25).
3. Remove the retaining ring (20), washer (21) and
spool (15) from the lever end.
Inspection
Clean all parts with an appropriate cleaning solution and
dry them thoroughly. Inspect each component as
described in this section. Replace any component that
shows wear or damage.
1. Rotary Impact Assembly: Inspect the exterior for
damage and loose or missing parts. Inspect the
spur gear (through the small view hole in the end of
the mechanism) for grooves, nicks and chips. If the
unit is damaged, replace the impact assembly.
2. Bearings: Insert the shaft into the bearings. Spin
the shaft. If the shaft does not spin smoothly,
replace the entire assembly with bearings already
pressed in.
3. Motor Cap, Handle and Adapter: Inspect mating
surfaces, bores, oil passageways, etc. for grooves
or nicks. If any component shows wear or damage,
replace the entire assembly with bearings already
pressed in.
4. Planet Gear with Needle Bearings: Insert a corre-
sponding dowel pin into bearing. While holding the
dowel between a thumb and forefinger, roll the gear
in the palm of your other hand. If either gear does
not spin smoothly, replace both gears with bearings
already pressed in.
5. Inspect all other disassembled components for
cracks, grooves or nicks.

Greenlee Textron / Subsidiary of Textron Inc. 64455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A ImpactWrench
Assembly
Refer to the Illustration and Parts List for correct
orientation and placement of parts.
Replace any O-rings, V-rings, seals, and gaskets on
parts that have been disassembled. Apply hydraulic
fluid or O-ring lubricant to all O-rings and all metal
surfaces which they must slide over. When installing an
O-ring which must slide over sharp surfaces, use a
rolling motion and be careful not to damage the O-ring.
Wherever the assembly results in metal-to-metal
contact, coat the surfaces with hydraulic fluid or O-ring
lubricant.
Some steps of the assembly procedure require a
removable type of thread sealing and locking com-
pound, such as Loctite®242®or equivalent. Follow the
manufacturer’s instructions for curing.
Actuating Spool
1. Assemble the retaining ring (20) and washer (21) to
the spool (15). Slide the spool into the handle (2).
2. Install the connecting link (28) and lever (25).
3. Install the machine screw (26) and elastic stop nut
(27).
Directional Spool
1. Assemble one O-ring (18) to the spool (22).
2. Slide the directional spool into the handle just far
enough to expose the O-ring groove. Install the
second O-ring (18).
3. Install the buttons (23). Secure with screws (24).
Motor and Hammer Case
1. Install the hammer assembly (34–45). Install the
hammer case (29) and secure with three cap
screws (46). Torque to 9 Newton-meters
(80 inch-pounds).
2. Assemble the motor cap (4) and handle (2) aligning
the scribe marks. Secure with eight cap screws
(14). Using the sequence shown here, torque to
9 Newton-meters (80 inch-pounds).
Torque Sequence
1
3
4
2
57
86

Greenlee Textron / Subsidiary of Textron Inc. 74455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A ImpactWrench
Illustration
14 4
13
7
11
10 5
39
6
12
223 24
32
27
34 39
35
44
42
41
40
43
45
46
47
29
30
8
20
17
16 19
36
37
20
38
28
21
15 18
25
18
26
22
23
24
50
48
49

Greenlee Textron / Subsidiary of Textron Inc. 84455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A ImpactWrench
2 44049 138170 Handle (includes Items 3 and 3A)............ 1
3* 41503 F015305 O-ring, .500 x .687 x .093" –80 ............... 1
3A 41591 F016728 Bearing, Needle, .439 x .625 x .500" ....... 2
4 40412 118070 Motor Cap (includes Item 5)..................... 1
5 41591 F016728 Bearing, Needle, .439 x .625 x .500" ....... 2
6 40303 112271 Shaft, .439 x 3.50".................................... 1
7 41621 F017010 Retaining Ring, .437" ............................... 1
8 40168 104110K Idler Shaft................................................. 1
9 41592 F016729 Woodruff Key #213, .125 x .375" ............. 1
10 41593 F016730 Pin, Drive, .123 x .209 w/Square Head.... 1
11 41630 F017105 Gear, 11-Tooth......................................... 2
12* 41595 F016732 Gasket ...................................................... 1
13 41624 F017014 Pin, Dowel, .250 x .625"........................... 2
14 41616 F016807 Screw, Cap, 1/4 –20 x 1.00"
Socket Head ......................................... 1
15 40190 105369 Valve Spool (H6510A and H6510A2) ...... 1
40204 105385 Valve Spool (H6510A1 and H6510A3) .... 1
16 40242 107725 Spring, Comp., .265 x .359 x .812" .......... 1
17 40042 091053 Cap........................................................... 1
18* 41489 F015257 O-ring, .437 x .562 x .062" –68 ............... 3
19* 41488 F015255 O-ring, .562 x .750 x .093" –68 ............... 1
20 41455 F014097 Retaining Ring, .750" ............................... 2
21 40191 105371 Washer, Flat, .375 x .750 x .030"............. 1
22 40215 105427 Directional Spool ...................................... 1
23 40228 106576 Button ....................................................... 2
24 41715 F018627 Screw, Cap, #10–24 x .500", Flat Head .. 2
25 40406 118061 Trigger ...................................................... 1
26 41583 F016230 Screw, Machine, #10–24 x 1.250"
Round Head ......................................... 1
27 41676 F018029K Nut, Hex, #10–24 x .187" ......................... 1
28 41636 F017345 Connecting Link, #41 ............................... 1
29 41225 157110 Case with Bushing ................................... 1
30 43241 123012 Bushing .................................................... 1
32 41696 F018361 Case ......................................................... 1
34 43146 FOR003273 Bearing, Thrust......................................... 1
35 48533 48533 Carrier Shaft............................................. 1
36 41741 F019090 Gear ......................................................... 2
37 43147 FOR001421 Bushing .................................................... 2
UPC NO. PART
KEY 78-3310- NO. DESCRIPTION QTY.
Parts List

Greenlee Textron / Subsidiary of Textron Inc. 94455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A ImpactWrench
UPC NO. PART
KEY 78-3310- NO. DESCRIPTION QTY.
Parts List (cont’d)
38 43382 FOR002491 Pin, Dowel, .250 x .625"........................... 2
39 42112 FOR002812 Rotor Pinion ............................................. 1
40 43935 FOR003744 Race, Thrust Bearing ............................... 1
41 48661 48661 Guide........................................................ 1
42 48170 48170 Spring ....................................................... 1
43 42111 FOR002808 Hammer.................................................... 1
44 42122 FOR003244 Ball, .344", Steel....................................... 2
45 41698 F018363 Anvil.......................................................... 1
46 41616 F016807 Screw, Cap, 1/4–20 x 1.00"
Socket Head ......................................... 1
47 41383 F012241 Washer ..................................................... 3
48 41964 F022551 Chuck, Quick-Change, 5/8" Hex
(H6510A2 and H6510A3) ..................... 1
49 41625 F017039 Pin (H6510A2 and H6510A3) .................. 1
50 41317 F009868 O-ring (H6510A2 and H6510A3).............. 1
Repair Kits
* 40341 113464 Packing Kit (includes items
marked with an asterisk) ...................... 1
41697 F018362 Hammer Assembly
(includes Items 34–47) ......................... 1

Greenlee Textron / Subsidiary of Textron Inc.
4455 Boeing Drive, Rockford, IL 61109-2988 USA
Customer Service (International): 815/397-7070 •Fax: [phone]
Customer Service (North America): 800/435-0786 •Fax: [phone]
Canada Fax: [phone] Printed in the U.S.A.