Tadano GR-300EX-3, Руководство по обслуживанию

Страница: 53 / 157

Y-7 Y-7
Assembly Adjustment (Traveling Device)
40
WY05-4221E
3. Parking brake adjustment
3.1 Connecting the parking brake and brake
chamber
(1) Shift the rod of the brake chamber to the end of
its stroke. (Use air pressure to move it to the end
of its extension stroke.) Then adjust the position of
end, connect the chamber and brake lever.
(2) After connecting, check that the clearance
between the pad and disc plate becomes
approximately 0.2 mm (0.008 in) per side. Then
lock in place with the nut.
* Operating stroke of the brake lever (reference):
16 to 20 mm (0.63 to 0.79 in)
4. Tire and steering angle adjustment
4.1 Tire air pressure
Unit: kPa {kgf/cm
2
} (psi)
Spec. No.: GR-350-3 and GR-300E-3
Tire size Traveling
On-rubber
operation
20.5×25-24PR
525
+100
0
{5.25
+1
0
}
(76.1
+14.5
0
)
650 ± 20
{6.5 ± 0.2}
(94.25 ± 2.9)
445/95R25
900
+100
0
{9.0
+1
0
}
(130.5
+14.5
0
)
900 ± 20
{9.0 ± 0.2}
(130.5 ± 2.9)
4.2 Adjusting the steering angle
1. Jack up the vehicle. Operate the steering cylinder
2 to 3 times with 4-wheel steering (to bleed air out
from the cylinder).
2. Before adjusting the steering angle, use a
side-slip tester to check that the amount of tire
side-slip is 5 mm (0.197 in) or less for both the
front and rear tires.
3. If it is more than 5 mm (0.197 in), loosen the bolts
that fasten the left and right tie-rod ends. Then
rotate the tie-rod and adjust the toe-in.
4. Jack up the vehicle on a level road surface so that
the height of the left and right tires is the same.
Use the steering angle measurement jig to adjust
the steering angle in direction A to [
θ ] at stopper
bolt X, and in direction B to [ θ ] at stopper bolt Y.
5. Adjust the rear wheels as the procedures of the
front wheels.
Tire size θ (°)
20.5×25-24PR
22
0
–1
445/95R25
26
0
–1