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SAFETY PRECAUTIONS FOR REMOVAL AND REFITTING OPERATIONS
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When removing or refitting parts, always take the following safety precautions.
1.
Precautions for removal operations
·
Unless otherwise indicated, lower the working equipment until it rests on the ground.
·
After disconnecting hydraulic and fuel system pipes, always fit plugs to the open ends of the pipes to prevent in-
gress of impurities.
·
Before removing a cylinder, fully retract the piston and secure it in this position using a retaining strap.
·
Use containers of sufficient capacity when draining oil, coolant or fuel.
·
Before removing a part from the machine, check for alignment markings indicating the correct assembly po-
sition. If necessary, make new markings to ensure correct assembly.
·
When unplugging electrical connectors, always grip the connectors firmly to avoid pulling on the wires.
·
Where necessary, label wires and pipes before removal to avoid confusion when reconnecting.
·
Check the number and thickness of any shims removed and keep them together in a safe place.
·
To lift the machine or any of its main components, use lifting equipment of suitable capacity.
·
When using bolts or eye bolts to remove parts, ensure they are screwed home fully.
·
Before removing a part, clean the surrounding area and, after removing the part, cover it to prevent the ingress of
dirt and dust.
2.
Precautions for refitting operations
·
Tighten nuts and bolts to the specified tightening torques.
·
When refitting flexible pipes and wires, take care not to twist or tangle them.
·
Always fit new seals, O-rings, cotter pins and safety stop rings; ensure that cotter pins are bent over so that they
cannot work loose.
·
Ensure that circlips are correctly installed in their seatings.
·
When applying threadlocking compound, first clean the part removing all oil and grease, then cover the thread
evenly applying a few drops of the compound.
·
When applying sealant, first clean the surface removing all traces of oil and grease and check for dirt or inden-
tations, then apply the sealant evenly making sure that it forms a continuous film around any fixing holes.
·
Clean all parts, removing dirt, oxidisation, carbon deposits, burrs and indentations.
·
Coat all moving parts with a thin film of engine oil.
·
When reconnecting electrical connectors, first remove all traces of oil, dust and water from the inside of the con-
nector and then connect the two halves together firmly.
·
When using eyebolts for lifting, check that they are not deformed, screw them fully home and align the eye with
the lifting hook.
·
Bolt down flanged fittings evenly, tightening the bolts gradually in a crosswise pattern.
3.
Precautions to be taken on completion of removal/refitting operations
·
If coolant has been drained from the engine, refit the drain plug and add new coolant to the correct level. Start the
engine to circulate the coolant and then check the level again and top up.
·
After removing hydraulic components, top up the hydraulic oil to the specified level. Start the engine to circulate
the oil in the hydraulic circuits and then recheck the level and top up as necessary.
·
After having removed the variable displacement pump, before connecting the discharge pipe, fill the pump cas-
ing with oil.
·
Grease stub axle housings, cylinder pivot mountings and drive shafts thoroughly after assembly.
SAFETY PRECAUTIONS FOR REMOVAL AND REFITTING OPERATIONS
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