- 68 -
6.4.5 Poly V-belt tension adjustment
To check the cooler fan poly V-belt tension, measure
the belt frequency. Use tensioning tool 2913 0022 00.
The arrows show where the frequency should be
measured.
Following mounting frequency applies:
• span 1 = 82±4 Hz
• span 2 = 102±5 Hz
• span 0 = 58±3 Hz.
The mounting frequency must be checked on only 1
strand, after adjustment/replacement of the belt. The
compressor must run for a few minutes. Then, shut
down the unit and readjust the mounting frequency.
Correct the V-belt tension by loosening the fixing
screw (1) of V-belt tensioner (2). Loosen the lock nut
on the adjusting screw (3). Turn the adjusting screw
clockwise to increase V-belt tension or counter-
clockwise to decrease V-belt tension.
After adjusting the V-belt tension, retighten the
adjusting screw lock nut and the fixing screw.
Protect the electrical and controlling
equipment, air filters, etc. against
penetration of moisture.
Never leave spilled liquids such as
fuel, oil, coolant and cleansing
agents in or around the compressor.
82 4H
z
Span 1
1
2
3
Span 2
102
5H
z
58 3H
z
Span 3
To Next Page
Loading...
