Sakai SW800 Series, Руководство по ремонту

Страница: 85 / 159

3-113
Inspection & Adjustment
2-5. Measurement of steering circuit pressure
Park on level ground. Apply the parking
brake. Stop the engine and block the
wheels.
1. Measurement
★ Hydraulic oil temperature: 45 ~ 55°C
(122±41°F)
★
Because the propulsion charge circuit
makes use of the pressure of return oil
from the steering circuit, check to see if
the pressure in the propulsion charge cir-
cuit is normal.
1) Disconnect inlet hose (1) from the steering
cylinder, and connect a pressure gauge to
the hose end using adapter
⑤ .
• Pressure gauge:
0 ~ 25 MPa (0 ~ 250 kfg/cm 2 ) {0 ~ 3,500 psi}
2) Start the engine. Ensuring that the F-R
lever is in the neutral position, set the throt-
tle lever to high idle.
3) Rotate the steering wheel clockwise to full
lock and take the reading of the pressure
gauge.
★
Do not allow the relief valve to stay
open longer than 3 seconds.
2. Adjustment
If the measured value is not within the
permissible range, disassemble and clean the
relief valve built in Orbitrol.
★ The valve is not adjustable.
★ Carefully perform disassembly and
reassembly taking necessary means to
avoid entry of foreign matter.
★
If the valve is beyond adjustment, take
necessary measures referring to
relevant instructions in the chapter,
TROUBLESHOOTING.
1
SW8003006
SW6503005
⑤