7-25
5. RCV LEVER
Maintenance
check item
Criteria
Remark
Leakage
The valve is to be replaced when the leakage becomes
more than 1000 cc/m at neutral handle position, or more
than 2000 cc/m during operation.
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
μ
m,
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.
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.
Ø
7
1 mm
Содержание HX130 LCR
Страница 11: ...1 1 SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10 ...
Страница 174: ...4 5 MEMORANDUM HYUNDAI HEAVY INDUSTRIES CO LTD CONSTRUCTION EQUIPMENT DIV ...
Страница 218: ...4 49 4 49 No of pin Receptacle connector female Plug connector male 14 1 7 6 14 MG610406 KET SDL CONNECTOR 13 ...
Страница 517: ...8 89 Insert O rings to the relief valve 30 and reassemble them to rear cover 20 This completes assembly 17 32038SM42 ...
Страница 536: ...8 108 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29 ...
Страница 545: ...8 117 125LCR8TM61 After assembling spring 44 in order clamp plug 41 Tightening torque 5 5 0 5 kgf m 39 8 3 6 lbf ft 31 ...
Страница 566: ...8 138 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10 ...
Страница 577: ...8 149 14 15 3 Install cover 3 to body 1 and tighten bolts 14 Torque 10 12 5 kgf m 72 3 90 4 lbf ft 7 21078DA10 ...
Страница 609: ...8 181 1 STRUCTURE GROUP 11 WORK EQUIPMENT SECTION C SECTION B SECTION A 130ZF8DA44 SECTION A SECTION B SECTION C ...