Testing And Adjusting Parking Brake Control Cable - Komatsu WA250-6 Shop Manual

120 Testing and adjusting, Part 2

Testing and adjusting parking brake control cable

Testing and adjusting parking
brake control cable
Necessary tools
Symbol Part No.
V 79A-264-0021
Testing
1. Install push-pull scale V to a position at dimen-
sion (a) from the end of parking brake lever (1)
(excluding the button) and pull it with a force of
294 - 392 N {30 - 40 kg}.
Dimension (a): 55 mm
q
2. If the parking brake lever is pulled by 8 teeth or
more, check the fixing parts of the parking
brake control cable (on both lever side and
brake side) for looseness. If the fixing parts are
loosened, tighten them, and then perform the
following adjustment.
WA250, 250PZ-6
1
Part Name
Push-pull scale
Adjusting
1. Release the parking brake.
a Check that the pawl of the parking brake
lever is at the lowest position.
2. Loosen locknut (2) and remove clevis pin (3).
3. Pull parking brake lever (4) on the transfer side
in the release direction. (Add the play of the
parking brake lever to the upper side, how-
ever.)
4. Under the above condition, tighten clevis (5) to
match its hole to the hole of parking brake
lever (4).
5. Install clevis pin (3) and tighten locknut (2).
3
Locknut: 5.9 – 9.8 Nm {0.6 – 1.0 kgm}
a After finishing adjustment, pull parking
brake lever (1) again with a force of 294 -
392 N {30 - 40 kg} and check that it travels
7 clicks.
SEN03837-01
29
30-120