Manitou MT 732, Operator'S Manual

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D7 - HYDRAULIC RETURN OIL FILTER CARTRIDGE
CHANGE
Stop the I.C. engine and remove the pressure from the circuits by acting on the hydraulic
controls.
Thoroughly clean the outside of the filter and its surroundings before any intervention in order
to prevent any risk of polluting the hydraulic circuit.
- Place a container under hydraulic drain filter 1 (fig. D7).
- Unscrew the body of the filter.
- Remove the hydraulic return oil filter cartridge and fit new replacement cartridge (see: 3
- MAINTENANCE: FILTERS CARTRIDGES AND BELTS).
- Make sure that the cartridge is correctly positioned and refit the body of the filter.
Tighten the body of the filter by hand pressure only and lock the body of the filter in place by a
quarter turn.
D8 - BALANCING VALVE
CHECK
To be performed after the first 50 hours of operation and then every 500 hours.
Stop the lift truck on horizontal ground, put the handbrake on and set the reverse gear to neutral.
ROLE OF BALANCING VALVES
- The balancing valves protect the user from any risk due to a fall in hydraulic pressure or an exploding hose during hydraulic
operations.
Keep everyone well away during these inspections.
In all cases, the balancing valve(s) concerned must be repaired or replaced if hydraulic movement continues after the I.C. engine has
been switched off.
Never use the lift truck with a defective balancing valve.
TESTING EACH HYDRAULIC MOVEMENT
LIFTING CIRCUIT:
- Start up the lift truck and raise the jib by about 45°.
- With the I.C. engine running at mid- speed, lower the jib. While the jib is being lowered, switch off the I.C. engine; movement
should slow down as the I.C. engine speed falls and stop when the I.C. engine stops.
TELESCOPING CIRCUIT:
- Start up the lift truck and raise the jib as far as it will go, extending the telescope(s) completely.
- With the I.C. engine running at mid- speed, retract the telescope(s). When retracting the jib, switch off the I.C. engine; movement
should slow down as the I.C. engine speed falls and stop when the I.C. engine stops.
TILT CIRCUIT:
- Place the nominal load on the forks, anchor it correctly to prevent it from falling off during the test.
- Start up the lift truck and tilt the carriage backwards, lifting the jib sufficiently to allow the carriage to tilt.
- With the I.C. engine running at mid-speed, tilt the carriage forwards. While it is tilting, switch off the I.C. engine; movement should
slow down as the I.C. engine speed falls and stop when the I.C. engine stops.
D7
1
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