Komatsu PC350LC-8, Operation & Maintenance Manual

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POSITION FOR ATTACHING SAFETY LABELS
HIGH REACH DEMOLITION MANUAL
7-22
OPERATION 7
ADJUSTMENT OF HYDRAULIC VARIABLE GUAGE UNDERCARRIAGE, (Where Fitted) 7
CAUTION
There must be plenty of room available to manoeuvre the
machine for adjustment of undercarriage. Make sure the
operations are carried out in a flat, level, spacious area.
1. Park the machine in the posture shown.
2. Stop the engine and relieve the pressure in the swing circuit
by moving the left wrist controller left and right.
3. Set the safety lock lever into the safe position and get out of
the cab.
4. Move onto the machine upper structure, locate the valves at
the swing machinery and turn the two levers until they are
horizontal.
5. Return to the cab, start the engine and set the safety lock
lever into the operation position.
6. Operate the SLEW function. It may be necessary to travel the
machine forwards and backwards to allow the tracks to
extend. If travelling is necessary, move the machine slowly
and carefully, adjusting the steering controls as necessary.
Slew left - undercarriage width decreases
Slew right - undercarriage width increases
7. Make sure the trackframe is fully wide or fully narrow. Stop
the machine, turn off the engine and relieve the pressure in
the swing circuit as in step 2 above.
8. Set the safety lock lever into the safe position and get out of
the cab.
9. Return the two valve handles at the boom foot to the vertical
position.
10. The undercarriage is locked into position.
Undercarriage locked
Undercarriage
active