Nilfisk-Advance America RS 501 Manuel D’Utilisation
ENGLISH
SERVICE MANUAL
126
33015500(3)2008-02
RS 501
HYDRAULIC SYSTEM
HYDRAULIC SYSTEM OIL PRESSURE CHECK ON DRIVE SYSTEM PUMP
NOTE
This check is necessary in case of malfunction of the drive system.
This check is necessary in case of malfunction of the drive system.
Preliminary operations
Empty the hopper (3). If it contains a small quantity of waste, it is not necessary to dump it.
Drive the machine on a solid and level ground and engage the parking brake with the lever (66). To perform the inspection,
indicated in the next step 9, in a safe condition, the ground opposite the machine have to be free from obstruction and levelled.
Turn the ignition key (76) to OFF position and remove it.
Remove the screw (42), open the left water tank (7) and disconnect the fastener, then fully open the tank.
Drive the machine on a solid and level ground and engage the parking brake with the lever (66). To perform the inspection,
indicated in the next step 9, in a safe condition, the ground opposite the machine have to be free from obstruction and levelled.
Turn the ignition key (76) to OFF position and remove it.
Remove the screw (42), open the left water tank (7) and disconnect the fastener, then fully open the tank.
WARNING!
Open the left tank (41) only when it is empty: each tank contains 120 kg of water approximately.
Open the left tank (41) only when it is empty: each tank contains 120 kg of water approximately.
Connect a pressure gauge (E), with a minimum scale of 300 Bar equipped with the extension, to the pressure intake (B) of the
drive system pump.
Measure the drive system pump pressure according to the following procedure.
drive system pump.
Measure the drive system pump pressure according to the following procedure.
Pressure measurement
Start the machine and run the engine at maximum speed (as shown in the User Manual).
Fully engage the parking brake with the lever (66).
Fully engage the parking brake with the lever (66).
WARNING!
To perform the inspection, indicated in the next step 9, in a safe condition, keep the personnel away from the
front of the machine and remove any obstructions.
To perform the inspection, indicated in the next step 9, in a safe condition, keep the personnel away from the
front of the machine and remove any obstructions.
Press and hold the brake pedal (57), then fully press the drive pedal (56) (if the machine moves, release the drive pedal
(56), then try again by fi rmly pressing the brake pedal (57)). Check that the pressure on the pressure gauge (A) is within
200 and 250 Bar.
(56), then try again by fi rmly pressing the brake pedal (57)). Check that the pressure on the pressure gauge (A) is within
200 and 250 Bar.
If the pressure is normal, release the drive pedal (56) and turn off the machine.
If the pressure is lower than specifi ed, check if the fault is related to the drive system pump or to the drive pedal assist.
If the pressure is lower than specifi ed, check if the fault is related to the drive system pump or to the drive pedal assist.
Reset
Perform steps 4 and 5 in the reverse order.
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10.