Hydrostatic fan drive rear cooling system – Oil and filter change

AP20.50-W-2003J

Hydrostatic fan drive rear cooling system – Oil and filter change

13.4.15

MODEL

963, 964 with ENGINE 473.9

with rear cooling system

1

Oil filler cap

3

Oil filter

2

Drain screw

4

Oil reservoir

 Danger !

Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure.Risk of poisoning from swallowing hydraulic fluid.

Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A

 Danger !

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A



Remove

1

Clean area around oil filler cap (1) and drain screw (2)

2

Unscrew oil filler cap (1)

3

Remove drain screw (2) and drain oil from oil reservoir (4)

 Collect oil in a suitable container and allow to drain completely.
Dispose of used oil properly and in a manner acceptable to the environment.

4

Unscrew oil filter (3)

 When the oil filter (3) is unscrewed, a small quantity of hydraulic fluid may drip out.
Collect it with an absorbent rag to prevent soiling.
Dispose of the oil filter properly and in an environmentally acceptable manner.



Install

5

Install new oil filter (3)

 Clean the sealing flange on the oil filter housing.
Coat the new seal of the oil filter (3) with hydraulic fluid.

6

Replace sealing ring on drain screw (2)

7

Screw drain screw (2) into oil reservoir (4)

 Drain screw, oil reservoir for hydraulic drive for fan/coolant pump

*BA55.30-N-1013-04A

8

Add hydraulic fluid

 Hydrostatic fan drive

*BF55.30-N-1001-02H

9

Screw on oil filler cap (1)

10

Shift manual transmission to neutral, start engine and allow it to run at a speed of approx. 1200 rpm for 2 to 3 min

 This is necessary so that the hydraulic circuit of the rear cooling system is bled.

11

Stop engine and check fan system for leaks

 Visual inspection only.

12

Check oil level in oil reservoir (4)

 Correct oil level if required.

13

Confirm oil change in maintenance booklet

 Hydraulic components

Number

Designation

Model 963, 964 with engine 473.9 with rear cooling system

BA55.30-N-1013-04A

Drain screw, oil reservoir for hydraulic drive for fan/coolant pump

Nm

20

 Hydraulic drive

Number

Designation

MODEL 963, 964 with ENGINE 473.9
with rear cooling system

BF55.30-N-1001-02H

Hydrostatic fan drive

HLP 22 (DIN 51524) hydraulic fluid, or HM 22 (ISO 6743/4) hydraulic fluid

l

 50