DOC-20230111-WA0038.

UPPERSTRUCTURE / Swing Device
Disassemble Valve Block
• Be sure to read. “Precautions for Disassembly
and Assembly” thoroughly on page W1-1-1 before
starting the disassembly work.
1. Remove socket bolts (10) (2 used). Remove
block (11) from housing (13).
:5 mm
2. Remove plug (1) from block (11). Remove spring
(3) and seat (4).
:5 mm
3. Remove plug (9) from block (11). Remove spring
(7), spring seat (6) and spool (5).
:5 mm
Assemble Valve Block
• Be sure to read. “Precautions for Disassembly
and Assembly” thoroughly on page W1-1-1 before
starting the assembly work.
1. Install O-ring (8) to plug (9). Install spool (5),
spring seat (6), spring (7) and the plug to block
(11).
:5 mm
: 11.5 N⋅m (1.2 kgf⋅m, 8.7 lbf⋅ft)
2. Install O-ring (2) to plug (1). Install seat (4), spring
(3) and the plug to block (11).
:5 mm
: 11.5 N⋅m (1.2 kgf⋅m, 8.7 lbf⋅ft)
3. Install O-rings (12) (2 used) to block (11). Install
the block to housing (13) with socket bolts (10) (2
used).
:5 mm
: 11.5 N⋅m (1.2 kgf⋅m, 8.7 lbf⋅ft)
W2-6-27