MERLO P25.6, Instruction Manual

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7 - SECURITY PERIODICAL INSPECTIONS
7 - 4
POWER STEERING PRESSURE CALIBRATION
-
Stop the engine and take away the key from the board.
- Connect the small hose, coming from the gauge, to the pump pressure plug (as for the checking of the HYDRAULIC OIL
SYSTEM PRESSURE).
- Start the engine.
- Keep the transmission in neutral position.
- Accelerate up to 1800 r.p.m..
- Steer up to lock to left or right direction and, while keeping the unit steered, read the pressure from the gauge in the cab.
- The pressure must be over 180 bar (180 kg/cm²).
HYDRAULIC SYSTEM OIL PRESSURE
-
Stop the engine and take away the key from the board.
- Connect the small hose in the engine compartment to the "A" pressure plug.
- Start the engine.
- Retract the boom.
- Accelerate up to 2400 r.p.m., while keeping the boom retract command
operating.
- Check on the gauge in the cab that the pressure is between 205 and 215 Bar.
WARNING ! In case the gauge indicates a pressure value different
from the forecasted one, please ask for assistance from qualified Merlo
Service personnel.
When the checking of the pressure is ended, disconnect the small hose
from the pump and rearrange it in the engine compartment.
RAMS' STOP VALVES
-
Start the engine. Take a load, using the forks, with a weight of at least 2/3
of the machine's maximum capacity.
- Hook up to the forks end a plumb line with a lenght of about 3 meters.
- Stabilize the machine (if the machine is equipped with stabilizers)
- Lift the boom up to an height of about 3,5 meters.
- Extract the boom for about 0,5 meters.
- Stop the engine and operate the distribution levers as to lower the boom
and to rotate the forks downward.
- Release the levers
- Measure the distance "D" between the end of the plumb line and the
ground.
- Lock the cab and wait for about 30'.
- Repeat the measurement.
The difference between the two measurements must not be over 25 mm, in case the difference is over 25 mm request the
MERLO service assistance.
PARKING BRAKE
-
Start the engine and shift to the 2nd speed.
- Check that the speed has been shifted by running the machine for a short stretch.
- Apply the parking brake.
- Keeping applied the brake pedal, shift the gear to forward position and accelerate up to 1600 r.p.m..
- Slowly release the brake pedal.
- If the machine does not move, accelerate up to the maximum r.p.m. The machine must stay still.