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Section
Check Hydraulic Oil Level
Check Bucket Teeth
Check Hoses and Lines for Leaks
Check Hoses and Lines for Cracks, Bends,
Etc.
Greasing
Check Ride Control Accumulator
Function, Gas Leakage, Looseness, and
Loading
Damage (Option)
system
Replace Hydraulic Tank Oil Return Filter
Replace Air Breather Element
Check Pilot Circuit Accumulator
Function, Gas Leakage, Looseness, and
Damage
Check Gas pressure in Ride Control
Accumulator (Option)
Change Hydraulic Oil and Clean Suction
Filter
Check Outer and Inner Rear View Mirrors
Check ROPS, ROPS Mounting Bolts, and
Cab
Check and Replace Seat Belt and Lower
Tether
Chassis
Clean Engine Room and Hood
Check Steps, Grab Handles and Handrails
Check Windshield Washer Fluid Level
Greasing (Center Pin)
Check All Monitor Functions and
Instrument Operation
Check Horn and Back Up Alarm
Operation
Electrical
system
Check Work Lights
Check Electrical Harnesses and Fuses
Check Battery Electrolyte Level
Check Electrolyte Specific Gravity
f
NOTE:
*1: Add grease daily during first 50 hours of operation. In case the machine is engaged in
excavation in mud, water or snow, add grease after each work shift.
*2: After 50 hours of operation, carry out greasing every 100 hours of operation afterwards.
Shorten greasing intervals when the machine is operated under severe conditions or
when the machine is continuously operated for a long period of time.
*4: Hydraulic oil changing interval differs according to the kind of hydraulic oil used.
MAINTENANCE
Item for check
: First time replacement or cleaning only
Operating hours
10
50
100 250 500 1000 2000 4000 4500
*1
*2
Every 3 years
7-13
Page
7-43
7-111
7-53
7-53
7-19
7-52
7-49
7-50
7-51
7-52
7-44,
*4
7-46
7-115
7-112
7-112
7-116
7-115
7-113
7-21
7-84
7-85
7-85
7-86
7-82
7-83
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Table of Contents
Troubleshooting
