LeeBoy 8515E - Track Tension Pressure; Troubleshooting; Hydraulic Test Ports

5-48 LeeBoy 8515E Conveyor Paver
Maintenance
Track Tension PressureTrack Tension Pressure
The hydraulic cylinders are automatic and provide even
tension on the tracks to prevent excessive wear to the
paver’s undercarriage. If the tracks do start “slipping,” it
is typically due to damage or extensive wear rather than
track tension pressure, but check the pressure rst to
rule out a hydraulic issue.
The track tension main manifold is mounted on the
hydraulic tank on the left side of the paver. (Figure
5-62)
To check the pressure, perform the following procedure:
1. Raise the hopper and insert the safety prop
(described on Page 5-5) to access the track
tension manifold.
2. Connect a 2000 PSI gauge in-line with either Port A
or Port B on the track tension main manifold.
• If the pressure is between 350 - 400 psi, the
track tension pressure is ne.
• If the pressure reading is not between this
range, the charge pressure needs to be
adjusted at the propel pump. Contact your
authorized LeeBoy dealer for assistance.
Port B
Port A
Figure 5-62. Track Tension Manifold
TROUBLESHOOTING
Hydraulic Test PortsHydraulic Test Ports
The hydraulic test ports provide an easy and convenient
means of checking pressure for the ve main functions
of the paver: Forward propel (left and right sides),
conveyors/cylinders, augers/vibrators and the
generator. (Figure 5-61)
1
2
3
4
5
Figure 5-61. Test Port
Item
No.
Function PSI Relief / Gauge
1 Generator
Relief set at 3000 PSI.
Use 4000 PSI gauge.
2
Conveyors/
Cylinders
Relief set at 3400 PSI.
Use 4000 PSI gauge.
3
Augers/
Vibrators
Relief set at 3400 PSI.
Use 4000 PSI gauge.
4 Right Forward
Relief set at 3625 PSI.
Use 4000 PSI gauge.
5 Left Forward
Relief set at 3625 PSI.
Use 4000 PSI gauge.
To check pressure:
1. Using the table above, connect the appropriate
gauge to the port being tested.
2. Start the engine, then check gauge for the proper
pressure reading.
3. If adjustment is needed, locate the pressure-
reducing valve on left side of main manifold.
4. Remove valve cap with an allen wrench.
5. Adjust the pressure-reducing valve clockwise for
more tension or counterclockwise for less tension.