Assembling The Stopper Pin A And B Kits; Assembling The Body S Kit; Assembling The Body H Kit (Photo 12); Assembling The Body S Kit And Body H Kit - Kubota U20-3 Workshop Manual

U20-3, U25-3 WSM

3. Assembling the stopper pin A and B kits

Assemble the two plate springs (33) to the
stopper pin A (25) to form the stopper pin A kit.
Similarly, assemble the two plate springs (33)
to the stopper pin B (26) to form the stopper
pin B kit.
At this time, use care not to confuse the plate
spring mounting direction. Mount it in the
manner as shown in Fig.5.
4. Assembling the body S kit (Photo 11)
Assemble the stopper pin A kit, stopper pin B
kit and rod (21) to the body S, and then insert
the rocking pin (12) into the hole of the swash
plate (10) and mount them into the hole of the
body S (1).
Next, mount one spring T (15) to the spring
holder (18) and set the spherical portions of
the spring holder (18) into the holes of the
swash plate (10).

5. Assembling the body H kit (Photo 12)

Mount the spring holder (18) to the body H (2).
Then, position the valve plate (5) by the spring
pin (56) of the body H (2) and gently mount it in
place.
The cylinder barrel (4) slides over the surface
of the valve plate having fine grooves. Use
care not to confuse the mounting direction.

6. Assembling the body S kit and body H kit

(Photo 13)
Mount the packing (13) to the mating face of
the body S (1) with use of the positioning pin
(27).
At this time, replace the packing with new one.
Place the two M10x6.5 hex socket bolts for
temporary mounting to the upper side and
tighten them slowly.
When the clearance between the mating faces
becomes 5 to 10 mm, replace with the five
M10x35 hex socket bolts (44) and fix them
firmly.
Tool: Hex wrench 8 mm
Tightening torque: 5.2 ~ 6.6 kgf·m
IV-S-51
Hydraulic system (Service section)