Drive System
Maintenance
Torquing the Wheel-Lug
Nuts
Service Interval:
After the first hour
After the first 10 hours
Every 200 hours
Wheel-lug nut torque specification:
102 to 108 N∙m
(75 to 80 ft-lb)
Torque the lug nuts at the front and rear wheels
(4-wheel-drive machines only) in the pattern as shown
in
and
to the specified torque.
•
Front wheels: refer to
g034007
Figure 61
•
Rear wheels (4-wheel-drive machines only): refer
to
g274650
Figure 62
Cooling System
Maintenance
Cooling System Safety
•
Swallowing engine coolant can cause poisoning;
keep out of reach from children and pets.
•
Discharge of hot, pressurized coolant or touching
a hot radiator and surrounding parts can cause
severe burns.
– Always allow the engine to cool at least 15
minutes before removing the radiator cap.
– Use a rag when opening the radiator cap, and
open the cap slowly to allow steam to escape.
•
Do not operate the machine without the covers
in place.
•
Keep your fingers, hands and clothing clear of
rotating fan and drive belt.
Coolant Specifications
The engine coolant must conform to the following
specifications:
•
JIS K-2234 (Japanese industrial standard)
•
SAE J814 (engine coolants)
•
ASTM D3306 (specification for ethylene-glycol
base engine coolant)
Use one of the following coolant blends:
•
Glycol-based pre-diluted coolant (50/50 blend)
•
Glycol-based coolant mixed with
distilled
water
(50/50 blend)
•
Glycol-based coolant mixed with good quality
water (50/50 blend)
– Total hardness <170 ppm
– Chloride <40 ppm (CI)
– Sulfates <100 ppm (SO
4
)
Checking the Cooling
System and Coolant Level
Service Interval:
Before each use or daily—Check
the cooling system and the coolant
level.
Before each use or daily—Remove debris from
the engine area, oil cooler, fuel cooler, and
radiator (clean them more frequently in dirty or
dusty conditions).
Every 1,500 hours—Change the engine coolant
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