DRESSTA 32501, Operator'S Manual

Page: 107 / 177

MAINTENANCE
SECTION 5
Page 19
DRESSTA TD-15H
BELTS
5.7.2.2. Checking Tension and Adjustment of A/C Compressor Belt
Fig. 5.6. Tension Adjustment of Air Conditioner Compressor Belt
A. Air Conditioner Compressor Clamping Bolt (2 pcs)
B. Locking Bolt
To adjust the belt tension of an air conditioner compressor proceed as follows:
1. Loosen clamping bolts "A" of the compressor and bolts “B".
2. Tense the belt by tilting the compressor till the belt tension is between 270-490 [N] (the
deflection under the force of 110 [N] should be 16.5 ± 2 [mm]).
3. Tighten clamping bolts "A" and lock nuts "B".
5.8. COOLING SYSTEM
General
The cooling system operates under pressure. The water pump circulates the coolant through the
oil cooler, engine block, cylinder heads, and radiator. Circulation is controlled by thermostats,
which prevent coolant flow through the radiator until the engine reaches the operating
temperature. Proper cooling is assured only when the system is sealed, radiator cap and gasket in
good condition, thermostats operate properly, system is free of coolant and/or air flow restrictions
and is filled to the proper level.
Selection and maintenance of the system coolant is important to long engine life. The following
information provides recommendations for selecting engine coolant, maintaining coolant inhibitors,
and servicing the cooling system. This system will operate with a water/antifreeze mixture or
inhibited water as a coolant. Never use water alone because water will allow rust, scale deposits,
and corrosion to occur within the system.
5.8.1. WATER
Use water, which has a low mineral content. Water used in conjunction with antifreeze, coolant
filters and inhibited water must meet the following standards:
https://www.truck-manuals.net/