Hitachi ZW 120-6 Operator's Manual page 233

Section
Check Rearview Mirror and Inside
Rearview Mirror
Check ROPS Cab Mounting Bolts
Check and Replace Seat and Seat Belt
Chassis Clean Engine Compartment and Hood
Check Steps and Handrails for Damage
and Looseness
Check Windshield Washer Fluid Level
Greasing (Center hinge Pin)
Check Monitor Functions and All Other
Instrument Operation
Check Horn and Reverse Buzzer
Electrical
Check Lights
system
Check Electrical Harnesses and Fuses
Check Battery Electrolyte Level
Check Electrolyte Specific Gravity
Clean/Replace Air Conditioner
Circulation/Fresh Air Filters (and Double
Filters, if equipped)
Check Air Conditioner Fan Belt
Air
Check Refrigerant
Conditioner
Check Air Conditioner Condenser
Check Air Conditioner
Check Air Conditioner Piping
Check Compressor and Pulley
Check Tightening and Retightening
Others
Torque of Nuts and Bolts
f
NOTE: *3 Shorten maintenance intervals when the machine is operated under severe conditions or when the machine is
continuously operated for a long period of time.
MAINTENANCE
Item for check
: First time replacement or cleaning only
Operating hours
10 50 100 250 500 1000 2000 3000 4500


 Every 3 years











*3
Every 250 hours or three months
Every 250 hours or three months
Every 250 hours or three months
Every 250 hours or three months
Every 250 hours or three months
Every one year

7-15
Page
7-99
7-96
7-96
7-100
7-99
7-96
7-23
7-75
7-76
7-76
7-77
7-73
7-74
7-88~
7-90
7-93
7-94
7-93
7-92
7-92
7-94
7-103
