Track Frame - Kubota U20-3 Workshop Manual

U20-3, U25-3 WSM

[3] Track frame

Blade (right)
While
pressing tightly
enough, lock the nut.
Then make sure the extension
blade lock pin can be smoothly
pulled and pushed.
Bolt
Not
Blade, assembly (center)
Blade (left)
Dwg. No. Part No. Part name
010 RB411-2121-3 Frame (track, center)
020 RB411-2122-2 Frame (track, left)
020 RB411-2122-4 Frame (track, left)
030 RB-411-2123-2 Frame (track, right)
030 RB411-2123-4 Frame (track, right)
040 RB-411-2115-0 Cover (moter)
050 RB411-2126-0 Cover (hose)
060 01135-61020 Bolt
070 RB411-2127-0 Plain washer
080 01138-61020 Bolt
090 04015-60100 ???
100 RB401-2122-0 Pin
110 01133-61020 Bolt
120 RB411-2125-0 Bolt (stopper)
130 04512-60200 Spring washer
140 06331-35012 Plug
150 RB411-2181-2 Plate (slide)
160 01133-61220 Bolt
170 04013-60120 Plain washer
180 RB411-2182-0 Guide (crawler)
190 01133-61020 Bolt
Pin (30-135)
Iron Crawler
Q'ty
Interchangeability
A
1 Weight about 152 kg
1
~50185
1
≠ Weight about 103 kg
50186~
1
~50185
1
≠
50186~
2
2
10 M10×20L×1.25p 7T 48.1~55.9N·m(4.9~5.7kgf·m)
1
4 M10×20L×1.25p 7T 48.1~55.9N·m(4.9~5.7kgf·m)
4
φ30×62L
2
2 M10×20L×1.25p 7T 48.1~55.9N·m(4.9~5.7kgf·m)
4 Tipφ24 M32 fine-threaded 7T Tightning torgue:294.2~343.2N·m(30~35kgf·m)
4
8 Rubber crawler
4 Iron crawler
8 Iron crawler M10×20L×1.25p 7T 48.1~55.9N·m(4.9~5.7kgf·m)
8 Iron crawler
4 Iron crawler
12 Iron crawler M10×20L×1.25p 7T 48.1~55.9N·m(4.9~5.7kgf·m)
II-S-54
Machine body (Service section)
Bolt (stopper) 4 pcs.
Spring washer 4 pcs. Discontinued as from the 7th unit in August production
Frame (track, center): discontinued as from Hirakata production lot
Frame (Frack, right)
Frame (Frack, center)
Apply grease all over the
hatched inner surfaces.
(Do the same for the right side.)
Apply grease all over the
hatched inner surfaces.
(Do the same to the frame (track, right)).
Frame (track, left)
Preparatory steps
reasing the track frame stretcher
1. Press down the track stretch lever to get
the track width to maximum (1500 mm).
2. Remove mud off the stretcher, and apply
grease evenly all around the square pipe.
(4 locations at front and back)
3. Do the track stretching several times
between maximum (1500 mm) and
minimum (1300 mm) in order to get the
stretcher well greased.
Grease here.
Remarks
Grease here.