9 - 1
Removal and Replacement
Note: The illustration shows an early pump but although later
pumps are visually different the same procedure applies.
Removal
Remove the seat and seat plate (page B/1 - 1). Improved
access can be achieved by removing the front floor plate,
secured by screws C. Drain the hydraulic tank. Disconnect
the pump hoses and plug exposed connections. (If only the
auxiliary pump is to be removed, it will be necessary to
disconnect only the auxiliary pump hoses.) To remove the
auxiliary pump remove bolts A and lift out the pump.
Remove and plug connection to direction controls B.
Sling the pump unit using suitable lifting tackle.
Remove two bolts D and ease the unit away from the engine.
Once the pump unit coupling has separated from the engine,
the unit can be lifted clear.
Note: A special tool, Part No. 993/99510, is required to
remove the bottom flange bolt D.
Replacement
Using suitable lifting tackle, ease the pump unit into position,
making sure that the pump unit/engine couplings engage
smoothly and completely. (See page E/9 - 2.)
Refit flange bolts D.
Refit all connections to the main pump. Refit the auxiliary
pump if this has been removed, then refit and torque tighten
connections. Re-connect manual controls if applicable.
Note: Refill the pumps with filtered, clean oil (see page 3/1 -
1)
via the pump outlets before finally tightening the outlet
connections.
Refill the hydraulic tank. (see page 3/1 - 1).
Prime the system (see Start-Up Procedure). Refer to page
E/10 - 8 for setting up of manual controls if applicable.
Refit the front seat plate.
Torque Settings
Item Nm kgf m lbf ft
A 77 7.9 57
C 56 5.7 42
D 77 7.9 57
Hydraulic Connections 45 - 50 4.6 - 5.1 33 - 37
Section E
Hydraulics
9803/8500
Section E
9 - 1
Issue 3*
Pumps
S168150
*
*
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