HW3 Impact Wrench
Greenlee Tools, Inc.
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
5
Disassembly
Complete disassembly of the tool is not recommended.
If a complete overhaul is necessary, return the tool to
your nearest Greenlee Authorized Service Center.
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.
In order to simplify the disassembly and assembly
instructions, refer to “Tool Orientation” below to
identify the sides and ends of the tool.
Tool Orientation
Hammer Case Components
1. Using snap ring pliers, remove snap ring (67).
Remove cap (41).
2. Remove the anvil (59), hammer frame (56), hammer
(57), and hammer pin (58).
Motor
1. Remove cap screws (16) and remove motor cap (7)
from head (1). Remove O-ring (15). Remove dowel
pins (14).
2. Remove retaining ring (11) from idler shaft (13). Pull
idler shaft (13) with gears (10) from head. Remove
gear from idler shaft. Remove the key (9) from idler
shaft.
3. Remove retaining ring (11), gears (10), and Woodruff
key (9) from drive shaft (8). Push drive shaft toward
hammer case end and remove it from the head.
4. Remove spacer (40), thrust bearing (38), and
washers (39) from shaft (8).
Trigger and Super Spool™
1. Remove clips (48) from pins (47). Remove pins from
handle (5) and trigger spool (29).
Note: If trigger spool is not supported by covers
(49, 50), it may slide out the back.
2. Remove snap ring (35), washer (34), and spring (36).
Push trigger spool (29) out of handle (toward front of
tool).
3. Remove the retaining ring (32).
4. Remove Super Spool (30) and O-ring (33).
5. Remove O-ring (69) from spool (29).
6. Remove O-ring (27) and backup ring (28) from
handle (5).
Left Side
Right Side
Front End
(hammer case end)
Back End
(motor cap end)
