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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.
Tamper Unit
1. Assemble the O-ring (6), U-cup seals (4, 5), and rod
wiper (7) to the packing nut (3).
2. Install the ram (2) into the tamper body (1).
3. Thread and tighten the packing nut into the end of
the tamper body.
4. Install the shaft (8) into the center bore in the tamper
body, as shown.
5. Install the plug (11) into the valve body (10).
6. Install the O-ring (15) into the plug (14).
7. Slide the spool (9) into the valve body, as shown.
Set the stop (12), flanged end first, into the spool.
Install the spring (13) over the stop and secure with
the plug (14).
8. Install the O-rings (16, 17) into their appropriate
bores in the bottom of the valve body (10).
9. Set the valve body on top of the tamper body (1)
and align the scribed marks that were made during
disassembly. Fasten the valve body with four cap
screws (18).
10. Install the adapters (24) into the ports on the top of
the valve body.
11. Install the tamper foot (21) onto the end of the ram.
Install the cap screw (23) with washer (22) and
tighten the cap screw securely.
Greenlee / A Textron Company
H4802, H4802-1, and H4802-6 Pole Tampers
Tube
1. Refer to the parts illustration and the markings on
the pressure hose for appropriate hose connection.
Thread the hoses onto the adapters (24) in the top
of the valve body.
2. Slide the tube over the hoses. Secure the tube to
the valve body with four cap screws (28).
3. Apply a thread sealant, such as Loctite
Threadlocker, to the threads of the screws (27).
Follow the manufacturer's instructions for curing.
Slide both hose clamps (26) into the end of the tube
(25) and secure with four screws (27).
Control Valve Components
1. Install the adapters (30, 31) into the valve body (32).
2. Refer to the parts illustration and the markings on
the pressure hose for appropriate hose connection.
Connect the hoses to the adapters.
3. Slide the control spool (34) into the valve body (32).
Install one O-ring (35) into the valve body. Slide
the control spool through the valve body over the
installed O-ring so that it protrudes just far enough
to install the other O-ring (35). Then push the spool
(34) over the other installed O-ring (35).
4. Install the buttons (36) onto each end of the control
spool. Apply a thread sealant, such as Loctite 242
Threadlocker, to the threads of the machine screws
(37). Follow the manufacturer's instructions for
curing. Install the machine screws and torque to
3.5 Nm (31 in-lb).
6
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
242
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