Komatsu HM400-5, Руководство по эксплуатации и техническому обслуживанию

Страница: 355 / 446

Tire size
Inflation pressure kPa {kg/cm
2
}
Front wheel Center wheel Rear wheel
29.5–R25
(Standard)
375 {3.8} 390 {4.0} 390 {4.0}
875/65R29
(Option)
440 {4.5} 440 {4.5} 440 {4.5}
NOTICE
If the tires are used when the inflation pressure is less than the value given in the table above, the
rim may be damaged.
Always keep the tire inflation pressure within 0 to +30 kPa {0 to +0.3 kg/cm
2
of the value in the table
above.
PRECAUTIONS FOR REPLACING TIRES
After tightening hub bolts (1) when replacing the tire, travel for
5 to 6 km, tighten the bolts again to settle all the contacting
parts.
In particular, there are more contacting parts on the rear
wheels than on the front wheels, so it will take time for the parts
to settle. For this reason, repeat the tightening process during
the first 50 hours after installation.
METHOD FOR ADJUSTING PARKING BRAKE
k k
WARNING
• To prevent the parking brake from being automatically applied during the adjustment operation,
raise the brake oil pressure to a sufficiently high level. To prevent any other person from operating
the parking brake switch, hang a warning tag so that it can be seen clearly.
• Never put any oil or grease on the surface of the brake pad or disc.
If the parking brake effect is poor, adjust as follows.
1.
Stop the machine on a level place.
2.
Chock the tires to prevent the machine from moving.
3.
Turn the starting switch to ON position.
4.
Check that the brake oil pressure caution lamp is off (the brake accumulator pressure is sufficiently high).
5.
Release the parking brake by operating the parking brake switch.
6.
Loosen bolt (2) (4 pieces) for bracket (1) to be loose.
MAINTENANCE MAINTENANCE PROCEDURE
4-33