Sakai SV540 Series, Shop Manual

Page: 182 / 306

8-002
INSPECTION AND ADJUSTMENT
2. MEASUREMENT AND ADJUSTMENT OF PROPULSION
CIRCUIT PRESSURE
2-1. Measurement
wARNING
Confirm that the parking brake works properly before
measurement.
Oil temperature during measurement : 50
± 5
°C (122
± 9
°F)
①
Remove plugs from couplings (1) and (2) of propulsion
pump. Attach pressure gauge with hose
ⓢ
and connector
ⓤ
.
Coupling : 9/16-18UNF×M16
Adapter for hose
ⓢ
: M16 P=2.0
Pressure gauge connector
ⓤ
: M16×G3/8
High pressure gauge port (Forward) : (2)
High pressure gauge port (Reverse) : (1)
Pressure gauge
: 0 to 50 MPa
(0 to 7,250 psi)
②
Set propulsion speed change switch to “ ”.
③
Start the engine and set throttle switch to “FULL”.
④
Establish a condition in which machine propulsion load
becomes maximum.
(Pressure does not build up unless propulsion load is
applied.)
⑤
With propulsion load at maximum, slowly move F-R lever
to the side to be measured.
Then, read pressure indicated by pressure gauge.
⑥
After measuring, promptly return F-R lever to “N”.
Maximum circuit pressure
(high pressure relief valve setting)
: 42.0
± 1.0
MPa (6,090
± 145
psi)
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SV520-08001
1
2
SV520-08001
1
2
PG003163
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PG003163
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