Sakai SW800 Series, Shop Manual

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3-106
Inspection & Adjustment
2-2. Measurement of propulsion charge circuit pressure
Park the machine on level ground. Apply
the parking brake. Stop the engine and
block the wheels.
★ Because oil is supplied from the steering
circuit, make sure, before the measure-
ment, that the steering system works cor-
rectly.
Ensure that the neutral position of the F-
R lever perfectly aligns with the neutral
position of the pump swashplate.
1. Measurement
★
Hydraulic oil temperature: 50±5°C (122±41°F)
1) Disconnect hose (13) running from
propulsion to vibrator pump, and fit a
pressure gauge with adapter
⑤
.
• Gauge port: G3/8
• Pressure gauge:
0 ~ 5 MPa (0 ~ 50 kgf/cm
2
) {0 ~ 700 psi}
2) Start the engine and set the throttle to high
idle.
3) The charge pressure will vary. Take the
maximum pressure reading.
2.Adjustment
1) If locknut (15) of charge relief valve (14)
has no signs of looseness, dismount,
disassemble and clean the charge relief
valve. Do not loosen locknut (15) to keep
the setting unchanged.
★ Renew parts with signs of damage.
• Tightening torque:
Item (13)
70 N ・ m (714 kgf ・ cm) {51.7 lbf ・ ft}
Item (14)
44 N ・ m (449 kgf ・ cm) {32.5 lbf ・ ft}
★
Carefully perform disassembly and
reassembly taking necessary
measures to prevent ingress of
foreign matter.
SW8003002
13
14
SW6503005
⑤
14 15 16
SW8003014