![background image](http://html1.mh-extra.com/html/jcb/js130/js130_service-manual_3610745071.webp)
10 - 6
Other Measurements (continued)
g
Ram Piston Rod Seal Leakage
As described below, check each ram in tur n to
determine the amount of leakage via the ram rod seal.
1
Extend the ram fully and wipe the piston rod and
check that there are no scratches.
2
Extend and retract the ram until the rod has moved
a total of 100 metres (see the ram specification in
Technical Data
, Section E to determine the number
of ram strokes needed to achieve the required total
ram movement).
3
Measure the width of the oil ring on each ram rod to
see if it is within specifications (see below). Rings
B
to
G
are satisfactory, but ring
A
indicates that the
rod seal should be renewed.
This completes the measurement procedure for the
Performance Evaluation.
Section 3
Routine Maintenance
9803/6410
Section 3
10 - 6
Issue 1
Performance Evaluation
A
B
C
D
E
F
G
1mm
(0.039")
2mm
(0.079")
JS03220
Summary of Contents for JS130
Page 65: ...Section 3 Section 3 9803 6410 Issue 1 9 1 9 1 Routine Maintenance Component Location Diagram...
Page 118: ......
Page 119: ...3 1 Section C Electrics 9803 6410 Section C 3 1 Issue 1 Layout Operator s Cab...
Page 142: ...5 3 Section C Electrics 9803 6410 Section C 5 3 Issue 1 Pump Control FLOW CHART...
Page 207: ......
Page 209: ......
Page 210: ...3 4 Section E Hydraulics 9803 6410 Section E 3 4 Issue 2 Schematics Shuttle Block...
Page 532: ...Contents Page No Technical Data 1 1 i Engine 9803 6410 i Issue 1 Section K Section K...