Hydraulic Cylinder - Kubota B1220 Workshop Manual

B1220, B1620, B1820, WSM

(2) Hydraulic Cylinder

Hydraulic Cylinder Bore
1. Check the cylinder internal surface for spring or damage.
2. Measure the cylinder I.D. with a cylinder gauge.
3. If the measurement exceeds the allowable limit, replace the
hydraulic cylinder block.
Factory specification
Cylinder I.D.
Allowable limit
Clearance between Hydraulic Arm Shaft and Bushing
1. Measure the hydraulic arm shaft O.D. with an outside
micrometer.
2. Measure the bushing I.D. with a cylinder gauge, and calculate
the clearance.
3. If the clearance exceeds the allowable limit, replace the
bushing.
Factory
Hydraulic arm shaft O.D. specifica-
tion
Factory
Bushing I.D.
specifica-
(after press fitted)
tion
8-S16
HYDRAULIC SYSTEM
65.05 to 65.10 mm
2.561 to 2.562 in.
65.15 mm
2.565 in.
9Y1210272HYS0027US0
31.925 to 31.950 mm
Right
1.2569 to 1.2578 in.
29.925 to 29.950 mm
Left
1.1782 to 1.1791 in.
31.970 to 32.035 mm
Right
1.2587 to 1.2612 in.
29.975 to 30.035 mm
Left
1.1802 to 1.1824 in.
9Y1210272HYS0028US0
KiSC issued 07, 2011 A
(EU)