Komatsu PW98MR-10 Operation & Maintenance Manual page 380

MAINTENANCE PROCEDURE
1.
By using tools, loosen bolt (3) and nut (4) of elbow (2)
above KCCV ventilator (1).
2.
Move loosened bolt (3) and nut (4) along the groove of el-
bow (2) to position (A) shown in the figure.
3.
By using the filter wrench, loosen cover (7) of KCCV venti-
lator (1).
At this time, tube (5) and hose (6) rotate together with cov-
er (7).
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MAINTENANCE