Fig. 38 Checking coolant level
1
Water cooler
2
Coolant expansion tank
A
maximum marking (FULL)
B
minimum marking (LOW)
3
Filler port with cap
4
Overflow
5
Motor connection hose
1. Check the level of coolant in the expansion tank.
Top off when the coolant level falls below the
minimum marking
B
.
2. Close the canopy.
Determine and rectify the cause of coolant loss.
10.3.1.2 Checking the coolant
The coolant should be checked according to the maintenance schedule to ensure quality and op‐
erational life.
Coolant quality can be determined by the following parameters:
■ Visual check
■ Antifreeze concentration measurement
➤ Unscrew and remove the expansion tank filler cap
3
.
Visual check
The coolant should be checked for its color and any particles or sediments floating in it.
➤ Take a coolant sample and have analyzed.
The coolant should be changed if it is discolored or has floating particles.
Antifreeze concentration measurement
An instrument (e.g. refractometer) is used to check antifreeze concentration.
10 Maintenance
10.3 Engine maintenance
110
Operator Manual Screw Compressor
M27
No.: 9_9548 05 USE
Содержание M27
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