Hitachi ZW140-6 Operator's Manual page 266

Section
Check Hydraulic Oil Level
Check Bucket Teeth and Cutting Edge
Check Hoses and Lines for Leaks
Check Hoses and Lines for Cracks, Bends,
Etc.
Greasing
Replace HST Charge Filter
Check Ride Control Accumulator Function,
Gas Leakage, Looseness, and Damage
Loading (Option)
system
Replace Hydraulic Tank Oil Return Filter
Replace Pilot Oil Filter
Replace Air Breather Element
Check Pilot Circuit Accumulator Function,
Gas Leakage, Looseness, and Damage
Check Gas pressure in Ride Control
Accumulator (Option)
Replace Hydraulic Oil and Clean Suction
Filter
Replace Pilot Circuit Accumulator
Check Windshield Washer Fluid Level
Check ROPS Cab Mounts, Resin Cab Roof,
and Roof Mounting Bolts
Check and Replace Seat Belt and Lower
Tether
Check Steps, Grab Handles and Handrails
Check Outer and Inner Rear View Mirrors
Clean Engine Room and Hood
Greasing (Center Pin)
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 next greasing at the first 250 hours of operation. Then, carry out greasing every 500
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
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 
*1 *2
Every 4000 hours or 2 years
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Replace every 3 years
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7-14
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*4
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