Nilfisk-Advance America RS 501 Manuel D’Utilisation

Page de 146
ENGLISH
SERVICE MANUAL
118
33015500(3)2008-02
RS 501
HYDRAULIC SYSTEM
ACCESSORY AND STEERING SYSTEM PUMP DISASSEMBLY/ASSEMBLY (LDW 1603/B2 engine) 
(Continues)
CAUTION!
This procedure must be performed with the hopper (3) fully retracted (as shown in the fi gure).
CAUTION!
If necessary, remove the bonded sealing washers and replace them.
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, then engage the parking brake with the lever (66).
Lift the hopper (3), according to the procedure shown in the User Manual.
Turn the ignition key (76) to OFF position and remove it.
Open the left lid (18) by releasing the fasteners (19) with the supplied key.
Remove the locking pins (28) from the housings (29) and place them into the holes (30).
Empty the dust control system water tanks (7 and 16) according to the procedure shown in the relevant paragraph.
Remove the screw (42) and open the left tank (41).
WARNING!
Open the tanks (7 and 16) only if they are empty: each tank contains 120 kg of water approximately.
Mark the position of the hoses connected to the fi ttings (E) of the accessory pump (F) (for proper reassembly).
Disconnect the hoses from the fi ttings (E) of the accessory pump (F) and plug them immediately. Collect the hydraulic system 
oil that comes out of the hoses before plugging them.
WARNING!
Hydraulic system oil is highly corrosive, wear rubber gloves.
Remove the screws (G), then remove the accessory pump (F) by disengaging the connecting joint.
If necessary, remove the accessory pump fi ttings at the workbench.
Assemble the components in the reverse order of disassembly.
Start the machine, lift/lower the hopper and activate the brooms a few times, then stop the machine, check the hydraulic 
system oil level and, if necessary, top up (as shown in the User Manual).
Check the hydraulic system oil pressure at the accessory and steering system pump (see the procedure in the relevant 
paragraph).
If necessary, fi ll the dust control system water tanks according to the procedure shown in the User Manual.
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