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7-27
6. RCV PEDAL
Notes 1. It is desirable to replace seal materials, such as O-rings, every disassembling. However,
they may be reused, after being confirmed to be free of damage.
Maintenance
check item
Criteria
Remark
Leakage
The valve is to be replaced when the leakage effect
to the system. For example, the primary pressure
drop.
Conditions :
Primary pressure : 40 kgf/cm
2
Oil viscosity : 23 cSt
Spool
This is to be replaced when the sliding surface has
worn more than 10
Ɇ
m,
G
compared with the non-
sliding surface.
The leakage at the left condition is
estimated to be nearly equal to the
above leakage.
Push rod
This is to be replaced when the top end has worn
more than 1 mm.
Play at operating
section
The pin, shaft, and joint of the operating section are
to be replaced when their plays become more than 2
mm due to wears or so on.
When a play is due to looseness of a
tightened section, adjust it.
Operation stability
When abnormal noises, hunting, primary pressure
drop, etc. are generated during operation, and these
cannot be remedied, referring to section 6.
Troubleshooting, replace the related parts.
Þ
7
1 mm
Summary of Contents for HX140L
Page 12: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Page 209: ...4 5 MEMORANDUM...
Page 694: ...8 68 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Page 734: ...8 108 Assemble plug 2 Plug NPT1 16 11 EA 17 21078TM68 21078TM69 21078TM70 21078TM71...
Page 756: ...8 130 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...