6.
Take out suction strainer (4).
7.
Clean strainer with light oil or washings, dry it
and check strainer for damage. If damaged,
replace the strainer with new one.
8.
Check O-rings (5) and (6) on the bottom of
strainer for wear and damage. If worn or
damaged, replace the strainer with new one.
9.
Insert strainer (4) into suction tube.
10.
Install cover (3) with bolt (2).
Tightening torque: 41.9 to 51.1 N-m (30.9 to
37.7 lbf-ft)
11.
Start engine and operate it by low idling for
several (5 to 7) minutes. Operate each cylinders
and swing, and then return the machine to the
hydraulic level checking position. Stop the
engine and check the oil level, if the level is
low, make up the oil.
1.
Park machine on firm level ground, and
place the attachment to the ground. Stop
engine and move safety lock lever to
"LOCKED" position.
2.
Grease the swing reduction unit through the
grease fitting (1) with about 300 cc grease
(about 3/4cartridge). Continue to fill the
grease until the excess grease comes out
of relief valve (2).
E.
Swing Reduction Lubrication
Immediately after operation, there is a hazard of getting burn because oil is hot.
Start working after being cooled.
［
4. MAINTENANCE
］
4-74
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