Komatsu D155A-6 Operation & Maintenance Manual page 221

TRANSPORTATION TRANSPORTATION
2. Remove the floor cover, then disconnect 4 washer hoses,
wiring (4 terminals x 2, dashboard x 1, GPS x 1 (if equipped),
Orbcomm x 1 (if equipped)) from the socket.
3. When removing the cab, carry out the operation according to
the cab installation manual held by your Komatsu distributor.
REMARK
After removing, cover with vinyl bag to prevent dirt or dust from
entering the washer hose.
Before removing the cab, check the clearance between the cab
and the levers, and use for information as reference for
confirming the position when installing the cab.
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OPERATION OPERATION