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D12 - BLANKING CAP ON THE INDUCTION MANIFOLD
CHECK
If the cap on the induction manifold 1 (Fig. D12) have cracks or heat damage, renew the cap immediately.
D8 - B
ALANCING VALVE
CHECK
To be performed after the first 50 hours of operation and then every 500 hours.
Park the lift truck on level ground, apply the handbrake and set the forward-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.
TESTING EACH HYDRAULIC MOVEMENT
LIFTING CIRCUIT :
- Start up the lift truck and raise the boom to about 45°.
- With the engine running at mid- speed, lower the boom. While the boom is being lowered, switch off the internal
combustion engine; movement should slow down as the engine speed falls and stop when the engine stops.
TELESCOPING CIRCUIT :
- Start up the lift truck and raise the boom as far as it will go, extending the telescope(s) completely.
- With the engine running at mid- speed, retract the boom. While retracting the boom, switch off the engine; movement
should slow down as the engine speed falls and stop when the engine stops.
TILT CIRCUIT :
- Place the nominal load on the forks, anchor it securely to prevent it from falling off during the test.
- Start up the lift truck and tilt the carriage backwards, lifting the boom sufficiently to allow the carriage to tilt.
- With the engine running at mid-speed, tilt the carriage forwards. While it is tilting, switch off the internal combustion
engine; movement should slow down as the engine speed falls and stop when the engine stops.
D12
1
Failure to change a cracked or damaged rubber cap
may cause the entry of air that is not filtered, this can
result in severe damage to the I. C. engine.
If any other type of cap is found to be fitted, it is to be
removed and the correct cap fitted immediately.
IMPORTANT
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
engine has been switched off.
Never use the lift truck with a defective balancing valve.
WARNING
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