8200 SERIES TRACTORS
Introduction
1A01.21
Cleanliness To ensure a long life cycle to any machine, it is important that its moving parts are protected from dust and foreign bodies. Precautions must be taken against such danger. Sealed compartments, seals and filters ensure the cleanliness of air, fuel and lubricating oil. None of these protection systems should be removed. When disconnecting piping, whether it be hydraulic, fuel, lubricating or air lines, clean both the connecting points and the surrounding area. As soon as the piping is disconnected insert a plug, a cover or fasten adhesive tape over the opening to prevent foreign bodies from entering. In the same way, clean and cover all access covers and inspection plates when they are removed. Clean and check all components. Take care that all passageways and holes are unobstructed. Cover all components so that they remain clean. Ensure that all components are clean at the time of reassembly. Leave new parts in their packaging up until the time that they are actually used.
Assembly To reassemble a piece of equipment, complete each step in turn. Never partially assemble one subassembly and then begin to assemble another. Carry out all the recommended adjustments. Always recheck the work that has been carried out to ensure that nothing has been forgotten. Check the various adjustments again before putting the equipment back into service. Note: Before fitting new parts, remove the anti-rust compound from all machined surfaces (usually a peel-off material).
Lubrication According to recommendations, fill the compartments of the repaired or replaced elements with the correct quantity of clean oil of the type recommended in the maintenance section of the Operator Instruction Book.
Shims Whenever shims are removed, they should be attached together and their location marked. Ensure that distance pieces are clean and take care that they are not bent in any way when refitting.
4 5
3
2
1
Seals Take care that the holes in seals match exactly the lubricating channels in the corresponding components. If gaskets need to be made, select the thickness and type of material carefully. Take care that the seal is correctly shaped and cut. Badly cut and fitting seal can cause major breakdowns. SPY type lip seals Before fitting, lubricate the lips of SPY type seals with oil. Do not use grease on seals, unless they are grease seals. The main components of SPY type seals are the envelope (1), oil tightness element (2) and annular spring (3). The cross section shows the heel (4) and the pivot (5), these impart the dimensions to a single element seal. With one or two exceptions, the pivot of a lip seal faces the lubricant side. Some seals also have an auxiliary lip without a spring.
Cables and wires When removing or disconnecting a group of cables or wires, they must be identified and labelled in order to ensure that they are refitted correctly later.
Issue 2
May 2002