PERIODICAL INSPECTION AND MAINTENANCE
81
9/275, 9/305, 12/250, 17/240, 21/220
Fig. 17
A
Normal
B
Clogged
C
Indicator
D
Red signal
Air cleaner with dust indicator
This indicator is attached to the air cleaner. When the air cleaner
element is clogged, air intake resistance becomes greater and the dust
indicator signal turns to red indicating the element needs to be
changed.
When the signal turns to red, replace the element. Then press the dust
indicator button to reset the indication.
Air Intake Piping
Inspect air intake and charge air cooling pipes and connections for
damage or loose fitting. Replace or re-fit as necessary.
Fig. 18
ENGINE ELECTRICAL
The engine uses a 24 volt system and a negative earthing for the
electrical system.
Battery Servicing
Battery terminal connections
Check the battery cable connections for looseness or corrosion. Poor
cable connections will result in difficult engine starting or insufficient
battery charge.
The battery cables must be tightened securely.
Never reverse "+" and "-" terminals when reconnecting cables after
removal. Even a short period of reverse connection will damage the
electrical parts.
Cleaning of Battery
When the battery terminals are fouled clean them with clean tepid
water and wipe with a dry cloth to remove the water. Apply a light coat
of petroleum jelly or a grease.
Alternator Servicing
The polarity of the alternator is negative (-) earthing type.
Do not reverse the polarity connection, otherwise a short circuit will
occur resulting in alternator failure.
Do not spray water directly on the alternator. Entry of water into the
alternator creates electrolytic corrosion causing failure.
When the battery is charged from an external source, be sure to
disconnect the battery cables.
Wiring Connections
Check all of the electric wiring connections for looseness and damage
on a regular basis.
SERVICE AND MAINTENANCE
Please refer to the engine maintenance schedule.
