Maeda CC423S-1, Operation Manual

Page: 187 / 278

179
8.4 WHEN THESE PHENOMENA HAPPEN
8.4.1 ELECTRICAL COMPONENTS
• Make sure that you contact us or our sales service agency about the actions marked with ( ) in the table.
• Ask us or our sales service agency for repair if you suspect any abnormalities or causes other than
those given below.
Abnormal phenomenon Major cause(s) Remedy
Dark work lights even at the highest
engine speed • Defective wiring,
deterioration of battery
• Poorly adjusted tension of
fan belt
• Fuse failure
(• Check and repair
slackened terminals and
open circuits)
• Adjust fan belt tension
referring to the regular 250
hours maintenance
• Replacement
Lights flicker during engine
operation
Battery status indicator does not go
out even when the engine is
running
• Defective alternator
• Defective wiring (• Replacement)
(• Inspection and repair)
Abnormal noise from alternator
• Defective alternator (• Replacement)
Starter not rotating even after the
starter switch is operated • Defective wiring
• Insufficient battery charge
• Fuse failure (• Inspection and repair)
• Charge the battery
• Replacement
Starter pinion going in and out
repeatedly (struggling)
• Insufficient battery charge • Charge the battery
Starter key turning slow
• Insufficient battery charge
• Starter fault • Charge the battery
(• Replacement)
Starter disengaged before the
engine starts
• Defective wiring
• Insufficient battery charge (• Inspection and repair)
• Charge the battery
Glow lamp does not light.
• Defective wiring
• Lamp fault (• Inspection and repair)
(• Replacement)
8.4.2 MACHINE BODY
• Make sure that you contact us or our sales service agency about the actions marked with ( ) in the table.
• Ask us or our sales service agency for repair if you suspect any abnormalities or causes other than
those given below.
Abnormal phenomenon Major cause(s) Remedy
Drive, slewing or boom speeds are
slow • Insufficient hydraulic oil • Refer to the pre-operation
inspection and fill up to the
specified amount
Abnormal noise from pump
• Clogging in the hydraulic oil
tank strainer element
• Refer to regular 2000-hour
maintenance and clean.
Hydraulic oil temperature too high • Insufficient hydraulic oil
• Looseness of fan belt
• Refer to the pre-operation
inspection and fill up to the
specified amount
• Adjust fan belt tension
referring to the regular
250-hour maintenance
Tracks coming off
• Tracks too loose • Refer to “Irregular
maintenance” and adjust the
tension
Abnormal wear on the sprockets