H4802, H4802-1, and H4802-6 Pole Tampers
Greenlee / A Textron Company
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 Utility 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.
Tube
1. Remove the screws (27) that fasten the adapter (26)
to the tube (25). Remove the hose clamps.
2. Remove the cap screws (28) that secure the tube
(25) to the valve body (10).
3. Slide the tube away from the valve body to expose
the hose connections. Mark the end of the pressure
hose for correct assembly. Disconnect the hoses
(29) from the adapters (24) on the tamper unit. Slide
the hoses out of the tube.
Control Valve Components
1. Disconnect the hoses (29) from the valve body (32).
If necessary, remove the adapters (30, 31).
2. Remove the cap screw (37) and button (36) from
one end of the control spool (34). Slide the control
spool out of the opposite end of the valve body.
3. Remove the O-rings (35) from the valve body (32).
Remove the other machine screw and button from
the opposite end of the control spool.
Tamper Unit
1. Scribe a line across the valve body (10) and tamper
body (1) for correct assembly.
2. Loosen the cap screw (23) that fastens the foot (21)
to the ram. Loosen it so that it protrudes far enough
from the bottom surface of the tamper foot to be
struck with a hammer or pressed against with a
hydraulic press.
3. Slide the ram (2) out of the tamper body as far as it
will go. See 3a to remove the tamper foot manually.
See 3b to remove the tamper foot with a hydraulic
press.
3a. Taking care not to damage the ram surface, secure
the tamper foot in a vise with the bottom of the foot
upward. Set a block of wood on the cap screw (23)
and strike the block with a heavy mallet until the
tamper foot is released from the ram. Remove the
cap screw (23) and washer (22). Remove the tamper
foot.
3b. Taking care not to damage the ram surface, secure
the tamper foot in a hydraulic press and apply
force to the cap screw (23) until the tamper foot is
released from the ram. Remove the cap screw and
washer (22). Remove the tamper foot.
4. Remove the cap screws (18) that secure the valve
body (10) to the tamper body (1). Remove the valve
body from the tamper body. Remove the O-rings
(16, 17) from the valve body.
5. Remove the plugs (11, 14) from the valve body.
Remove the spring (13), stop (12), and spool (9)
from the valve body. Remove the O-ring (15) from
the plug. If necessary, remove the adapters (24).
6. Unscrew the packing nut (3) from the bottom end
of the tamper body (1). Remove the rod wiper (7),
U-cup seals (4, 5) and O-ring (6) from the packing nut.
7. Remove the ram (2) and shaft (8) from the tamper
body.
Inspection
Clean all parts with solvent and dry them thoroughly.
Inspect each component. Replace any component that
shows wear or damage.
