Komatsu WA600-8 Operation & Maintenance Manual page 324

MACHINE OPERATIONS AND CONTROLS
Deflection ratio = (H − h) / H x100
As a guideline that can be checked visibly, the deflection ratio
of the front tire (deflection/free height) is as follows.
When carrying normal load (boom horizontal): Approximately
15 to 25 %
When digging (rear wheels off ground): Approximately 25 to
35 %
In addition to the checking of tire inflation pressure, check for
small cuts and peeling on tires, for sticking of nails and metallic
pieces that may cause punctures, and for any abnormal wear.
Keep the working road surface constantly clean by removing fallen stones. This will extend the tire life and give
improved economy.
Operations on normal road surfaces, rock digging operations
Set the inflation pressure at high end of range in the following table.
Stock pile operations on soft ground
Set the inflation pressure at middle of range in the following table.
Operations on sand (operations not using much digging force)
Set the inflation pressure at low end of range in the following table.
If the deflection of the tire is excessive, raise the inflation pressure within the limits given in the following table to
give a appropriate deflection (see deflection ratio).
Tire size
(Pattern)
35/65-33-36PR Front
wheel
(L4: Rock)
(Standard
Rear
specification
wheel
machine)
35/65-33-36PR Front
wheel
(L5: Rock)
Rear
(if equipped)
wheel
35/65-33-42PR Front
wheel
(L4: Rock)
Rear
(if equipped)
wheel
35/65R33☆ Front
wheel
(L4: Rock)
Rear
(if equipped)
wheel
35/65R33☆ Front
wheel
(L5: Rock)
Rear
(if equipped)
wheel
3-256
H:
Free
Ground (sandy ground)
height
Stock pile
( mm)
525 to 625
{5.35 to 6.37}
534
525 {5.35}
625 to 725
{6.37 to 7.39}
529
625 {6.37}
490 to 590
{5.0 to 6.02}
520
490 {5.0}
490 to 590
{5.0 to 6.02}
521
490 {5.0}
Air pressure [ kPa{ kg/cm
Digging Stock pile
525 to 625 525 to 625
{5.35 to 6.37} {5.35 to 6.37}
525 {5.35} 525 {5.35}
625 to 725 625 to 725
{6.37 to 7.39} {6.37 to 7.39}
625 {6.37} 625 {6.37}
490 to 590 {5.0 490 to 590 {5.0
to 6.02} to 6.02}
490 {5.0} 490 {5.0}
490 to 590 {5.0 490 to 590 {5.0
to 6.02} to 6.02}
490 {5.0} 490 {5.0}
2
]
Normal road
Digging
525 to 625
{5.35 to 6.37}
525 {5.35}
625 to 725
{6.37 to 7.39}
625 {6.37}
490 to 590 {5.0
to 6.02}
490 {5.0}
490 to 590 {5.0
to 6.02}
490 {5.0}
OPERATION
When shipped
from the plant
525 {5.35}
525 {5.35}
625 {6.37}
625 {6.37}
590 {6.02}
490 {5.0}
590 {6.02}
490 {5.0}