Greenlee Textron / Subsidiary of Textron Inc.
5
4455 Boeing Dr., Rockford, IL 61109-2988 815/397-7070
H6510A Impact Wrench
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.
