Sakai SW300-1, Shop Manual

Page: 167 / 246

9-003
INSPECTION AND ADJUSTMENT
2-2. Inspection
• If measurement results indicate the pressure deviating from
maximum circuit pressure range, make an inspection in
accordance with procedure described below.
①
Remove plug and valve from high pressure relief and
bypass valves (1-11) or (1-12) of propulsion pump.
• *High pressure relief and bypass valves (Reverse) :
(1-11)
• *High pressure relief and bypass valves (Forward) :
(1-12)
②
Check removed high pressure relief and bypass valves for
trapped dirt and other abnormalities.
③ If trapped dirt is present, disassemble and clean high
pressure relief and bypass valves.
④
If pressure still deviates from maximum circuit pressure
range after valve is disassembled and cleaned, replace
high pressure relief and bypass valves.
⑤
After inspection, measure pressure again and check that
pressure reaches maximum circuit pressure range.
N•m
Bypass valve : 70 N·m (52 lbf·ft)
(NOTICE)
• Carefully disassemble and reassemble after taking
steps to prevent foreign material from getting in.
* : High pressure relief and bypass valves = S.C.R. (System Check Relief) valve for charge check and high
pressure relief and bypass valve.
• The numbers “1-11” and “1-12” appearing in above illustrations are consistent with lead line numbers shown
in illustration of propulsion pump in “2-2. Hydraulic Component Speci fi cations” (page 4-010).
SW300-1-09024
High pressure
relief valve
Bypass valve
SW300-1-09023
1-12
1-11
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