3.7 Setting HYDRIVE fan speed
The HYDRIVE fan speed is factory set to 2800 rpm.
NOTE
The fan will not reach rated speeds without adequa-
te system pressure.
Fan speed may be adjusted to control the HYDRIVE
operating temperature.
The equipment required includes (see Figure 9) :
• optical tachometer,
• 4 mm allen key
• 13 mm wrench.
NOTICE
System components MUST be operating at full load
to properly set the HYDRIVE fan speed.
NOTE
A minimum 725 PSI (50 bar) is required to operate the
HYDRIVE fan. MOUVEX recommends the fan speed
remain at the factory setting of 2,800 rpm.
1. Operate hydraulic system at full load to properly set
HYDRIVE fan speed.
NOTE
Creating an artificial load of the factory relief valve
setting, is the best way to set the fan speed. Refer
to the SETTING & ADJUSTING HYDRIVE RELIEF
VALVE, if necessary.
2. Loosen the fan speed lock-nut by turning counterclockwise.
3. While constantly checking the fan speed with an optical
tachometer, decrease the fan speed by turning the adjus-
ting screw counter-clockwise. Increase the fan speed by
turning clockwise (see Figure 9).
4. When desired fan speed is obtained, tighten the lock-nut
by turning it clockwise.
5. Unload system so that the fan speed slows or stops.
6. Reload the system and recheck the fan speed. Readjust if
necessary.
DANGER
Hazardous machinery.
Will cause severe
personal injury, death
or property damage.
INSERTING ANY OBJECT INTO FAN
DURING OPERATION WILL CAUSE
SERIOUS PERSONAL INJURY, DEATH OR
MAJOR PROPERTY DAMAGE.
Decrease
speed
Lock adjusting
screw after
Adjustment
Increase
speed
Figure 9
Setting the fan speed
CT1
DANGER
Hazardous machinery.
Will cause severe
personal injury, death
or property damage.
FAN SPEEDS ABOVE 3000 RPM WILL
CAUSE SERIOUS PERSONAL INJURY,
DEATH OR MAJOR PROPERTY DAMAGE.
11/16
NT 206-A00 10.11 Hydrive e
3. INSTALLATION (continued)
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