SERVICE MANUAL
ENGLISH
HYDRAULIC SYSTEM
DRIVE SYSTEM PUMP DISASSEMBLY/ASSEMBLY
CAUTION!
This procedure must be performed with the hopper (3) fully retracted.
CAUTION!
If necessary, remove the bonded sealing washers and replace them.
1.Remove the suction inlet (see the procedure in the relevant paragraph).
2.Mark the position of the hoses connected to the fi ttings (A) of the drive system pump (B) and of the suction fan pump (C) (for proper reassembly).
3.Disconnect the hoses from the fi ttings (A) of the drive system pump (B) and of the suction fan pump (C), then 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.
4.Remove the screws (E), then remove the pumps (B) and (C) with the relevant joints.
5.If necessary, remove the drive system pump fi ttings at the workbench.
If necessary, remove the screws (E), then remove the suction fan pump (C) with the joint (F) and the relevant fasteners.
6.Assemble the components in the reverse order of disassembly.
7.Start the machine, use the drive system and activate the suction fan, then stop the machine, check the hydraulic system oil level and, if necessary, top up (as shown in the User Manual).
8.Check the hydraulic system oil pressure at the drive system pump (see the procedure in the relevant paragraph).
A
A
A
E
A D B
F
C
A
S301425
RS 501
121
