Komatsu PC5500-6 Operation & Maintenance Manual page 129

Hydraulic mining shovel
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OPERATION
Display of Service *POWER CHECK* continued, see menu
control chart II, illustration (Z 23064)
6. Press key (10) for display of the present system pressures in
level 4.
7. For returning to the standard display level -0- press "RET" key
(9) four times.
Adjust hydraulic oil cooler fan speed
Within the menu point *POWER CHECK* the fan speed of the
hydraulic oil coolers can be set to minimum or maximum speed as
follows:
1. Select menu point Power Check *FAN DRIVE OIL COOLER
MIN / MAX* in level 3, see chart II.
2. Press key (10), the present speed condition of the cooler fans
appears on the display in level 4.
3. To change the fan speed insert service key (C) and select
with keys (11 and 12) the condition for minimum speed as
shown in display (A) or for maximum speed as shown in dis-
play (B).
4. For display of the system pressures with the adjusted fan
speed press key (9) the menu point Power Check *FAN
DRIVE OIL COOLER MIN / MAX* in level 3 appears on the
screen.
5. Select menu point Power Check *DISPLAY* with key (11)
then press key (10) the current system pressures are now
displayed in level 4.
Adjust radiator fan speed
Start from menu point Power Check *FAN DRIVE RADIATOR
MIN / MAX* in level 3 and then use the same procedure as for oil
cooler fan speed adjustment.
Reset hydraulic oil cooler fan speed and/or radiator fan
speed to normal condition
For resetting the fan speed to normal condition (Evaluation ON)
switch off key (C) or go back to menu point *SERVICE* in level 1
by pressing the RET key (9) three times.
3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS
129

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