Group 2 Major Components - Hyundai HX130LCR Manual

GROUP 2 MAJOR COMPONENT
1. MAIN PUMP
Part name & inspection item
Clearance
between piston (1) &
cylinder bore (2)
(D-d)
Play between
piston (1) & shoe caulking
section (3)
(δ)
Thickness of shoe
(t)
Free height of cylinder
spring (4)
(L)
Combined height of set
plate (5) (H) & spherical
bushing (6) (h)
(H-h)
Surface roughness for valve
plate (Sliding face) (7,8),
swash plate (shoe plate
area) (9), & cylinder (2)
(Sliding face)
3 1 2
9 5 6 4 7
d D
δ
L
h H
Surface roughness
necessary to be corrected
Standard surface roughness
(Corrected value)
7-21 7-21
8
Recommended
Standard
replacement
dimension
value
0.032 0.056
0-0.1 0.3
3.9 3.7
41.1 40.3
17.0 15.8
3z
0.4z or lower
140Z97MP01
Counter measures
Replace piston or
cylinder.
Replace
assembly of
piston & shoe.
Replace cylinder
spring.
Replace set plate
or spherical
bushing.
Lapping