Service Training
Section 7
Page 4
RP01 / Chapter 1
115 804 2401.1000
7.3 HYDRAULIC CONTROL BLOCK REMOVAL
WARNING: The hydraulic fluid can become very hot. Risk of scalding.
WARNING: Do not allow hydraulic oil under pressure, for example at a leak, to penetrate
the skin. Medical aid is required if such an injury occurs.
- Reach out, centralise the sideshift, and lower the mast fully.
- Apply the parking brake, turn the keyswitch OFF and disconnect the battery.
- Remove all hydraulic connections to the block, noting their position for reassembly. Ensure ends are
sealed to prevent ingess of dirt etc.
CAUTION: To prevent the hydraulic oil draining from the tank, the return to tank hose will
need to be plugged using plug Pt. No. 000 952 40 24. Before removing the hose, ensure this
plug is available. DO NOT clamp the hose to prevent oil leakage, as this will damage the
inner lining.
NOTE: Special spanner, tool number J 43975 will facilitate removal of the return to tank hose.
- Remove all electrical connections to the block, noting their position for reassembly.
- If necessary, jack and securely block the truck in order to gain better access to the three valve block
securing screws located under the reach frame.
- Remove the three securing screws and wavy washers.
- Remove the valve block, retaining the three plain washers located between the valve block and the reach
frame for reassembly, and place in a clean area prior to carrying out any servicing.
7.3.1 HYDRAULIC CONTROL VALVE RE-FITTING
To refit the control valve, reverse the removal procedure, ensuring that the three plain washer between
the valve block and the reach frame are correctly located. Use grease to prevent the washers from moving.
To facilitate reassembly, three studs can be made from M8 screws, which are then loosly screwed into
the valve block before assembling to the reach frame. These will hold the plain washers in place, and can
be removed one at a time and replaced with the correct screw and wavy washer. Torque valve block
securing screws to 12Nm.
115_07-03
Grease
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