Sakai SW300-1, Shop Manual

Page: 166 / 246

9-002
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 port (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)
:
34.5
± 1.0
MPa (5,003
± 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 Speci fi cations” (page 4-010).
SW300-1-09009
1-2
1-5
PG001014
h
09̲INSPECTION̲AND̲ADJUSTMENT.indd 9-002 09̲INSPECTION̲AND̲ADJUSTMENT.indd 9-002 2012/11/14 20:03:04 2012/11/14 20:03:04