LOWER ROLLER
Lower roller
1.
Loosen the rubber track shoe on the side where the oil is to be replaced, referring to
"INSPECTING AND MAINTAINING TRACK SHOE TENSION" in Chapter 4.
2.
Loosen lower roller tightening bolt (1) slightly (about one turn).
3.
Start the engine, and use the boom and arm to lower the bucket bottom to the ground on the
side of the lower roller to refill the oil, and lift up the machine.
4.
Support the machine with safety strut (5), and then stop the engine.
5.
On both the inside and outside of the crawler frame, remove adjusting bolts (1) and washers (2)
and remove lower roller (3).
6.
Remove fuel inlet plug (4) with an Allen wrench to drain old engine oil.
7.
Refill the specified amount {65 cc (4.0 cu
・
in)} of engine oil through the fuel inlet.
8.
Wind a sealing tape around plug (4) and tighten the plug securely. Clean up any oil around the
engine.
9.
Apply Loctite #262 to the screw of bolt (1) and temporarily tighten lower roller (3) to the crawler
frame.
10. Remove the safety strut supporting the machine to lower the machine to the ground completely,
and then tighten bolt (1).
Tightening Torque: 249.6 to 308.4 N
・
m (184.3 to 227.7 lbf
・
ft)
11. Lift up the machine and adjust the shoe tension. For how to adjust it, see "INSPECTING AND
MAINTAINING TRACK SHOE TENSION" in Chapter 4.
[
4. INSPECTION AND MAINTENANCE
]
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