Sakai SV201-1, Shop Manual

Page: 156 / 238

8-002
INSPECTION AND ADJUSTMENT
2. MEASUREMENT AND INSPECTION 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
± 41
°F)
①
Remove plugs from high pressure gauge ports, (1-2) and
(1-5) of propulsion pump. Attach pressure gauge with
adapter
ⓗ
.
Adapter
ⓗ
: 9/16-18UNF
High pressure gauge port (Reverse) : (1-2)
High pressure gauge port (Forward) : (1-5)
Pressure gauge : 0 to 50 MPa
(0 to 7,250 psi)
②
Start the engine and set throttle lever to “FULL”.
③
Establish a condition in which machine propulsion load
becomes maximum.
(Pressure does not build up unless propulsion load is
applied.)
④
With propulsion load at maximum, slowly move F-R lever
to the side to be measured.
Then, read pressure indicated by pressure gauge.
⑤
After measuring, promptly return F-R lever to “N”.
Maximum circuit pressure
(high pressure relief valve setting)
: 28.0
± 1.0
MPa (4,060
± 145
psi)
The numbers “1-2” and “1-5” appearing in above illustrations are consistent with lead line numbers shown in
illustration of propulsion pump in “2-2. Hydraulic Component Specifications” (page 4-008).
•
•
•
•
•
•
★
•
SV201-1-08001
1-2
1-5
SV201-1-08001
1-2
1-5
h
PG001014