General
Single Parts Repair, Off-Season Inspection or General Overhaul Off-season inspection is the best guarantee for trouble free and efficient performance. Repairs as described in foregoing and following chapters can be prevented. The term “off-season” applies generally to the winter months when the tractor is seldom required to do any work. During this period service stations do not have much to do as a rule and can give better service than during the peak periods.
Overhauling a tractor could be essentially different in the following respects : 1)
2)
A-10
The repair of individual parts that has failed during operation. This kind of repair is by no means as easy as it may seem at first sight, for replacing the defective part may call for elaborate and extensive dismantling and reassembly procedures. Another disadvantage of a “single parts repair” is that it may have to be carried out during the working season when the tractor is most urgently needed. When taking the preventive maintenance measures as outlined below these “single parts repairs” should, to a great extent, be eliminated. A fundamentally different procedure is the “off-season inspection” when all parts of the machine are checked over. This procedure covers mainly the following : Thorough cleaning of the machine, re-setting and adjusting of all units subject to a certain amount of wear, replacing those parts which still function but show such a degree of wear that they are not likely to survive the ensuing working season. Off-season inspection is a thorough preventive maintenance measure. It calls for a well trained serviceman with a detailed knowledge of the tractor and the functioning of the various units.
3)
A rather expensive reconditioning job is the “general overhaul”. It becomes necessary when the tractor has been kept on the job by “make-shift” repairs without observing fundamental maintenance rules. Worn parts fail and other, potentially good parts are often broken as a result of these failures. Apart from being a costly affair it very often happens that this sort of repair has to be made during the operating season when work is pressing. A general run down condition, moreover, often causes small fissures and cracks which can be overlooked and are then the source of fresh trouble. Off-season inspection is the most important measure of preventive maintenance. The frequency of this inspection should be determined by the number of operating hours and by operating conditions.
35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
