Komatsu HD325-8, Operation & Maintenance Manual

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REMARK
• Ask your Komatsu distributor to set the speed limit.
The speed limit can be set respectively for the loaded state and the empty state.
• If the brake pedal or retarder control lever are actuated while the speed limit function is enabled, you can
slow down the machine or stop it in the same way as that of the normal brake operations.
• The ARSC travel speed can be set only to the speed which is lower than the speed limit for the loaded
state.
The operation method of ARSC is not different from usual.
• The travel speed may exceed the limit speed temporarily when entering the downhill while the accelerator
pedal is kept depressed.
In such case, the overspeed caution lamp lights up on the machine monitor. Release the accelerator pedal.
The retarder control is started, and the display will disappear when the travel speed is decreased.
OPERATION IF TROUBLES ON SYSTEM OCCUR
The machine has a trouble if any of the action levels “L01” to
“L04” is displayed on the machine monitor.
Take appropriate actions following the list of action level dis-
plays and required actions.
Check the failure code. Notify your Komatsu distributor of the
failure code and ask for repair.
Failure code Failure name
Whether the systems continue or discon-
tinue the control
(●: Continue, x: Discontinue)
Engine control Retarder control
CA131 Throttle Sensor High Error x x
CA132 Throttle Sensor Low Error x x
DLT3KA T/M Output Speed Sensor Open Circuit x ●
DLT3LC T/M Output Speed Sensor Open Circuit or Short Circuit ● x
DHP6KA
DHP6KX
Suspension Pressure Sensor Signal Out of Range
(Rear Right)
x x
DHP7KA
DHP7KX
Suspension Pressure Sensor Signal Out of Range
(Rear Left)
x x
DX11KA Retarder Valve Output Open Circuit (Rear) ● x
DX11KY Retarder Valve Output Hot Short Circuit (Rear) ● x
DX11KB Retarder Valve Output Ground Fault (Rear) ● x
HANDLE SPEED LIMIT FUNCTION ATTACHMENTS AND OPTIONS
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