LeeBoy 8608 - Replacement Procedures

Maintenance
LeeBoy 8608 Commercial Paver5-32
To correctly apply dielectric grease:
• Apply a thin, visible, uniform coat using ONLY high-
quality dielectric grease (Dow Corning 4 or equivalent)
across the MALE connector as shown in Figure 5-31.
• Coating too thin may not ll the gaps between
pins.
• Coating too thick may prevent proper
connection or force pins or seals out. (Figure
5-30)
• Plug in the male connector.
DO NOT force connector to lock if too
much grease has been applied.
Excessive grease application does
not allow a proper connection by preventing the
plugs from locking into place, and can cause damage
to the connector seals.
Figure 5-31. Incorrect Application of Dielectric
Grease
REPLACEMENT PROCEDURES
Gear PumpsGear Pumps
Hydraulic uid is transmitted throughout the machine to
motors and cylinders, becoming pressurized accord-
ing to the resistance present. The uid is controlled by
valves and distributed through hoses and tubes. Three
gear pumps play a signicant role in producing hydraulic
power as it supplies hydraulic uid to system compo-
nents: The tandem gear, tandem drive, and tandem
auxiliary gear pumps. (Figure 5-32)
The tandem gear and tandem drive pumps are
accessed via the left access panel. The tandem gear
pump is attached to the tandem drive pump (just behind
it). Both are easily reached via the right access panel.
The tandem auxiliary gear pump is easier to access
from the front access panel inside the hopper.
Tandem
Gear Pump
Tandem
Drive Pump
Tandem
Auxilliary
Gear Pump
Figure 5-32. Gear Pumps
Use the following procedure for replacing either of the
gear pumps:
1. Access the gear pump slated for replacement.
2. Label and disconnect the hoses to the gear pump,
capping the tting on the pump.
3. Label, plug and cap the hoses.
The gear pump assemblies are very
heavy and must be properly supported with a sling
before continuing the following steps. DO NOT
loosen mounting bolts unless the pump is sufciently
supported.