Labrie Automizer Versa Hand, Maintenance Manual

Page: 106 / 190

98 Hydraulic System
2.
Apply Loctite 243 (medium strength) on the bolt before assembly.
3.
Install a steel wire on the yoke bolt (the wire must be fixed tight around the bolt) (see Figure
5-6).
4.
Use the following parts: QUB00700 (bolt) and 154503 (steel wire).
Priming a New Pump
To prevent cavitation or air in the hydraulic system after installing a new pump or even when flushing
the hydraulic system, make sure to prime the pump before starting the engine.
Apply the following procedure for any new installed pump:
1.
Make sure the parking brake is applied and the vehicle is tagged out for maintenance purposes
(refer to “Locking out and Taging Out the Vehicle” on page 10)..
2.
With the ball valve closed, fill the suction line before installing it on the pump.
3.
Fill the pump housing with new oil.
4.
Reinstall the pressure hose on the pump housing.
5.
Open the ball valve on the suction line.
6.
Crank the engine repeatedly — about five times — without letting it start in order to fill the
suction hose and the pump with hudraulic oil and to push the air back into the tank.
7.
Start the engine. You can slowly raise the engine RPM only after 5 minutes. When you raise the
RPM, always make sure that the pump doesn’t make excessive noise.
8.
Before putting the vehicle back in service, recalibrate the system pressures.
N
OTE
:
For units equipped with vane pump.
Inspecting the Hydraulic Tank
Verify that the oil in the tank is clean (not colored) and always at the appropriate level.
To inspect the hydraulic tank:
1.
Lock out and tag out the vehicle (see Locking out and Taging Out the Vehicle on page 10).
Danger!
Apply the lockout / tagout procedure at all times when maintenance or inspection is
carried out on the vehicle.
Caution! Maximum temperature for hydraulic oil is 77 °C (180 °F).