U20-3, U25-3 WSM Machine body (Service section)
II-S-55
[4] Blade
Dwg. No. Part No. Part name
Q’ty
Interchange
ability
Remarks
A
010 RB411-7460-0 Blade, assembly (center) 1 Weight about 93 kg
020 RB411-7455-0 Bushing (405030) 4
030 RC411-7445-0 Collar 2
040 06616-25010 Grease nipple 2
050 RC411-6678-0 Dust seal (405042) 4 50 in out. dia. 40 in inn. dia high DR type dust seal (φ40)
060 RB411-7462-4 Blade (left) 1
070 RB411-7463-4 Blade (right) 1
080 RB411-7466-0 Pin (30-135) 2 φ30×135L
090 01175-61260 Bolt 2 M12×60L×1.25p 7T 77.5~90.2N·m(7.9~9.2kgf·m)
100 02174-60120 Nut 2
110 RB411-7443-0 Pin (40-125) 2 φ40×125L
120 01133-61225 Bolt 2 M12×25L×1.25p 7T 77.5~90.2N·m(7.9~9.2kgf·m)
130 04015-60120 Plain washer 2
140 68741-6692-0 Spacer 2
150 RB411-7442-0 Pin (45-95) 2 φ45×95L
160 01133-61225 Bolt 2 M12×25L×1.25p 7T 77.5~90.2N·m(7.9~9.2kgf·m)
170 04105-60120 Plain washer 2
180 68741-6692-0 Spacer 2
CAUTION:
Track width operation
Adjust the track width to maximum (1500
mm) or minimum (1300 mm). If halfway, the
variable track is not fixed, which causes the
swivel frame to wobble.
Use the small track width only when passing
through a narrow flat place.
For other traveling, digging, bulldozing and
breaking jobs, be sure to keep the track
width largest. Otherwise the machine may
turn over.
Change the track width using the track stretch lever.
Large track width: Tilt the track stretch lever forward.
••••••The track width will be large.
(1300mm→1500mm)
Small track width: Pull the track stretch lever toward
yourself.
••••••The track width will be small.
(1500mm→1300mm)
If an obstacle is in the way of track stretching,
get rid of the obstacle or move the machine to a
flat ground. If the track still cannot be stretched,
use the attachment and the dozer to keep the
crawlers off the ground. Now stretch the track in
this posture. Check also the stretcher for mud
and the like, and remove it as required.
Track stretch lever
Track width
small
Track width
large
Track width 1500mm
Track width 1300mm
IMPORTANT
The dozer width can be changed by adding the
extension dozer.
Large dozer width 1500mm
Small dozer width 1300mm
To change the track width from large to small:
1. Pull out the dozer pin.
2. Reverse the extension dozer and set its hole
to the narrow-track hole. Put the dozer pin in
this hole.
Take similar steps to enlarge the track width.
[Dozer width:1500mm]
[Dozer width:1300mm]
Dozer pin
Dozer pin
Extension dozer
Extension
dozer
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