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WARNING:
Hot engine coolant is under
pressure. Never remove cap when coolant is hot
as severe burns can result. Allow engine to cool
before checking coolant level.
WATER SEPARATOR
A fuel filter/water separator may be installed in
engine's primary fuel filter location, in engine
compartment, to prevent water infiltration in
engine fuel system.
periodically, or when the water separator indicator
lamp lights in dashboard. To drain, loosen self
venting drain below separator, and tighten after
water has been flushed out.
BELT TENSIONERS
Air-operated type
Belt tensioning is applied through air bellows
which are adjusted by an air pressure regulating
valve mounted in engine compartment above the
doors. For proper operation of the air bellows,
adjust the upper tensioning bracket to provide a 2
3/8"-2
1/2"
(60-64mm)
pneumatic system under normal pressure and the
pressure regulating valve set at 50 psi (345 kPa)
for Series 60 engines and at 70 psi (482 kPa) for
Series 50 engines.
(Optional)
It should be drained
03004
extension
with
the
For belt replacement, air pressure must be
released from bellows by means of the belt
tensioning pressure control valve. This valve (see
page 2-34) mounted above the engine doors
close to the pressure regulating valve, is manually
operated. Before handling, be sure that all engine
stopping safety precautions have been observed.
Manually adjustable type
There are two (2) different types of manually
adjustable belt tensioning systems. Tension belts
according to the instructions in "Maintenance
Manual".
6 - 8
CARE & MAINTENANCE
12017
12018
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