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Troubleshooting Guide
Hydraulic Pressure Test
6
6-12
60HDdoc042607
Troubleshooting Guide
6.6
Hydraulic Pressure Test
Perform the procedure described below to check, and adjust the hydraulic pressure,
if necessary.
See Figure 6-9.
Activate BED mode (
See Section 4.2.1 Performing Log Handling Functions
). Then
engage any of the log handling units except for the log turner. Wait until the cylinder is all
the way out. When the cylinder is in this position, the hydraulic pressure will start
increasing and the pressure relief valve will open. With the relief valve opened, check the
hydraulic pressure shown on the hydraulic pressure gauge and adjust it if necessary. The
hydraulic pressure is factory-set at 2200 psi (15,17 MPa) and should not need to be
readjusted. The relief valve adjustment bolt shown may be used to fine-tune the hydraulic
pressure:
Remove the adjustment bolt nut. Turn the adjustment bolt clockwise to increase the
pressure or counterclockwise to decrease the pressure.
CAUTION!
Pressure should not exceed 2200 psi (15,17
MPa). If it does, temperatures of the hydraulic pump motor
and hydraulic fluid will rise. This may result in fluid
overheating and may cause damage to the hydraulic
cylinders and hoses.
FIG. 6-9