Checking Directional Lever - Komatsu WA250-6 Shop Manual

SEN03837-01

Checking directional lever

Necessary tools
Symbol Part No.
1 79A-264-0021
K
Commercially
2
available
k
Stop the machine on a level ground, lower
the work equipment to the ground, and set
chocks under the tire securely.
Checking operating effort of directional lever
1. Stop the engine.
2. Install push-pull scale K1 or a spring balance
to a point 10 mm from the tip of the directional
lever, then measure the operating effort when
the lever is pulled in the direction of actuation.
a Carry out the measurement in each speed
range.
Checking travel of directional lever
1. Stop the engine.
2. Make mark (a) on the center of the knob of the
directional lever, then measure the travel with
scale K2 when the lever is operated in the
direction of actuation.
4
30-120
1
Part Name
Push-pull scale
Scale
120 Testing and adjusting, Part 2

Checking directional lever

WA250, 250PZ-6