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OPERATION
1.
Connect the clip of jumper cable (A) to the positive (+) ter-
minal of battery (C) on the failed machine.
2.
Connect the clip at the other end of jumper cable (A) to the
positive (+) terminal of battery (D) on the normal machine.
3.
Connect the clip of jumper cable (B) to the negative (-) ter-
minal of battery (D) on the normal machine.
4.
Turn the battery disconnect switch (S) of the failed ma-
chine to ON position.
5.
Connect the other clip of jumper cable (B) to the revolving
frame (E) of the failed machine.
METHOD FOR STARTING ENGINE
1.
Check both of normal machine and failed machine that the lock lever is set to LOCK position.
Check also that all the control levers are in NEUTRAL position.
2.
Make sure the clips are firmly connected to the battery terminals.
3.
Start the engine of the normal machine and run it at high idle (max. speed).
4.
Turn the starting switch of the failed machine to START position and start the engine.
If the engine does not start, try again after at least 2 minutes.
PROCEDURE FOR REMOVING JUMPER CABLE
After the engine has started, disconnect the jumper cables in the reverse of the order in which they were con-
nected.
1.
Remove the clip of jumper cable (B) from the revolving
frame (E) of the failed machine.
2.
Remove the clip of jumper cable (B) from the negative (-)
terminal of battery (D) on the normal machine.
3.
Remove the clip of jumper cable (A) from the positive (+)
terminal of battery (D) on the normal machine.
4.
Remove the clip of jumper cable (A) from the positive (+)
terminal of battery (C) on the failed machine.
IF TROUBLES ON HYBRID SYSTEM OCCUR
•
The problems of the hybrid system are shown in the following table.
•
Contact your Komatsu distributor for the remedies indicated with ( ) in the remedy column.
•
Ask your Komatsu distributor for repairs for problems or causes which are not listed below.
Problem
Does not swing.
Main causes
PPC lock lever is still applied.
Swing lock switch is still applied
Hybrid system stop switch is still ap-
plied.
Defective swing PPC pressure sen-
sor
Engine power deration due to lower-
ing of DEF level
Engine power deration due to abnor-
mality in urea SCR system device
TROUBLES AND ACTIONS
Remedy
Pull up the PPC lock lever.
Turn off the swing lock switch.
Turn off the hybrid system stop
switch.
(Replace the sensor.)
Add the DEF.
(Check and repair.) (Replace the de-
vice.)
3-269
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