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11-5 POWER TRANSMISSION TO DRIVEN MACHINES
11-5-1 BELT DRIVE
Take the following notes into consideration.
* V-belts are preferable to flat belts.
* The driving shaft of the engine must be parallel to the driven shaft of the machine.
* The driving pulley of the engine must be in line with the driven pulley of the machine.
* Install the engine pulley as close to the engine as possible.
* If possible, span the belt horizontally.
* Disengage the load when starting the engine.
If no clutch is used, use a belt tension pulley or the like.
11-5-2 FLEXIBLE COUPLING
When using a flexible coupling, runout and misalignment between the driven shaft and engine shaft must
be minimized. Runout and misalignment tolerance are specified by the coupling manufacturer.
12. CHECKS AND CORRECTIONS
After disassembling and cleaning the engine, check and repair, if necessary, according to the correction
table. The correction table applies whenever the engines are repaired. It is important for the servicemen
to be familiar with the contents of this table. Correct maintenance is recommended by observing the
correction standards specified.
The meanings of the terms used in the correction table are as follows:
1) Correction
Repair, adjustment or replacement of any engine parts.
2) Correction Limit
The limit on wear, damage or functional deterioration of engine parts beyond which normal engine
performance cannot be expected without repairing such parts.
3) Use Limit
The limit beyond which parts can no longer be used in respect of performance or strength.
4) Standard Dimensions
The design dimensions of new parts minus tolerance.
5) Correction Tolerance
Tolerance on the dimensions of engine parts refinished or adjusted.
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