6-23
Part name
Inspection item
Criteria & measure
Â
Existence of scratch, rusting or corrosion.
Â
Existence of scratch, gnawing, rusting or
corrosion.
Â
O-ring seal sections at both ends.
Â
Insert spool in casing hole, rotate and
reciprocate it.
Â
Damage of poppet or spring
Â
Insert poppet into casing and function it.
Â
Rusting, corrosion, deformation or breaking
of spring, spring seat, plug or cover.
Â
External oil leakage.
Â
Rusting, corrosion or deformation of seal
plate.
Â
External rusting or damage.
Â
Contacting face of valve seat.
Â
Contacting face of poppet.
Â
Abnormal spring.
Â
O-rings, back up rings and seals.
Â
In case of damage in following section,
replace part.
- Sliding sections of casing fore and spool,
especially land sections applied with
holded pressure.
- Seal pocket section where spool is inserted.
- Seal section of port where O-ring contacts.
- Seal section of each relief valve for main,
travel, and port.
- Other damages that may damage normal
functions.
Â
Replacement when its outside sliding
section has scratch(Especially on seals-
contacting section).
Â
Replacement when its sliding section has
scratch.
Â
Correction or replacement when O-ring is
damaged or when spool does not move
smoothly.
Â
Correction or replacement when sealing is
incomplete.
Â
Normal when it can function lightly without
being caught.
Â
Replacement for significant damage.
Â
Correction or replacement.
Â
Correction or replacement.
Â
Replacement.
Â
Replacement when damaged.
Â
Replacement when damaged.
Â
Replacement.
Â
100
replacement in general.
Block
Spool
Poppet
Around spring
Around seal
for spool
Main relief valve &
port relief valve
2
2
. MAIN CONTROL VALVE
Содержание R35Z-7
Страница 11: ...SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 9...
Страница 143: ...4 10 MEMORANDUM...
Страница 179: ...4 45 No of pin Receptacle connector Female Plug connector Male 14 1 7 6 14 MG610406 KET SDL CONNECTOR 13...
Страница 337: ...7 77 Take out ball bearing 3 from shaft 2 Tools required Ball bearing disassembly jig S 8 Completed 31 32 2 3 R35Z77TM32...
Страница 357: ...7 97 Remove lock nut 24 and then boot 27 16 RE18 140 7 RE19 140 7 25038RL02 4...
Страница 368: ...7 108 3 13 12 Install cover 3 to hub and tighten bolts 12 5 R35Z77TJ04...