jcb JS200 Service Manual page 483

Section F
8 - 1
Maintenance Specifications
If the seals are disassembled, replace them even though no damage is observed.
Part Name
(6)
Piston
(4)
Cylinder Block
(5)
Valve Plate
(7)
Retainer Plate
(8)
Retainer Holder
(9) *
Swash Plate
*
*
Note 1. Lap, using very fine grade paste.
* Note 2. Use very fine grade paste and lap with a steel ball.
9803/6400
Appearance
1. Deeply scarred or rough
surface is observed on
sliding area.
2. The clearance to the
block bore is excessive.
3. Backlash is excessive in
shoe ball section.
1. Deeply scarred or rough
surface is observed on
sliding area.
2. The inside of the bore is
excessively worn.
3. The engaged tooth is
abnormally worn or broken.
1. Deeply scarred, thermally
seized, unevenly worn or
rough surface is observed
on sliding area.
1. Deeply scarred, thermally
seized, unevenly worn or
rough surface is observed
on sliding area.
1. Deeply scarred, thermally
seized, unevenly worn or
rough surface is observed
on sliding area.
2. Deeply pitted, thermally
seized on the contact
area with the steel ball.
Transmission
Motor
Standard Value
0.030
0.15
Roughness 0.2a
Roughness 0.2a
Roughness 0.2a
Roughness 0.2a
* *
Ball seating
depth 14.3
Allowable Value Replaceable Part
Cylinder block kit
0.060
0.4
No seizure and Cylinder block kit
scar deeper
than 0.02mm
See note 1. When scar
cannot be completely
removed, replace.
0.8a No seizure Cylinder block kit
and scar deeper See note 1. When scar
than 0.02mm cannot be completely
removed, replace.
0.8a Retainer plate kit
0.8a No seizure * Swash plate steel ball
and scar deeper See note 2. When scar
than 0.02mm cannot be completely
removed, replace.
*
Ball seating Swash plate steel ball
depth 14.5 See note 2. When scar
cannot be completely
removed, replace.
Section F
8 - 1
Issue 2*