Switch Box (X2) In Cab Base - Komatsu 06253 Operation & Maintenance Manual

Hydraulic mining shovel
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OPERATION
3.7.1

SWITCH BOX (X2) IN CAB BASE

Legend for illustration Z25478
(1)
Main switch board (X2)
(2)
Cover
(3)
Cover fastener
(4)
Key
(5)
Plug socket 24V
(E34)
Master input signal module for the ETM
(E39)
Slave input signal module for the ETM
(E62)
Multi monitor for diagnostic of the electronic pump control system CR700
(H29)
Hour meter for travel operation. The hour meter indicates the total number of hours of travelling oper-
ation.
(H97)
Fault lamp for flashing out diagnostic fault codes of the engine Centry system, see next page for
more information.
Monitoring light of the automatic engine oil supply system -Reserve- (if so equipped)
(H143)
Steady light: oil is pumped from engine oil pan to reserve oil tank.
Regular blinking: oil is pumped from reserve oil tank to engine oil pan.
Irregular blinking: oil is pumped in both directions, oil level in engine oil pan is correct.
REMARK
If the indicator light (H143) is off with the engine running, there is a failure in the reserve system.
Have the reserve system checked and repaired through authorized service personnel.
(H147 -
Fault lamps for the electronic pump control system CR700
H148)
(S57)
Diagnostic switch for flashing out fault codes via lamp (H97) of the engine electronic control system
Centry, see next page for more information.
(S100)
Service switch for the electronic pump control system CR700 (adjustment mode)
(S101)
Service switch for the electronic pump control system CR700 (selection down)
(S102)
Service switch for the electronic pump control system CR700 (selection up)
(S103)
Service switch for the electronic pump control system CR700 (test mode selection position 2)
(S104)
Service switch for the electronic pump control system CR700 (primary P-factor)
(S150)
Service switch for Qmin position of main hydraulic pumps. Position 1 normal pump regulation. Posi-
tion 2 Qmin position.
(S280)
Switch for increasing low idle speeed of engine from 800 RPM to 1100 RPM. Increase the low idle
speed at beginning of the cold season (ambient temperatures constantly below -15°C). (Not used)
V15,V16
Diode arrays
, V19,
V20
REMARK
The Service switches (S100 to S150) are used for testing and
adjustment procedures of the hydraulic system and should only
be operated through authorized service personnel. For more
information refer to the Service Manual PC3000-6.
3.7 ELECTRICAL EQUIPMENT IN CAB BASE
147

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