Measurement And Inspection Of Steering Circuit Pressure; Measurement - Sakai R2-4 Shop Manual

INSPECTION AND ADJUSTMENT
7. MEASUREMENT AND INSPECTION OF STEERING
CIRCUIT PRESSURE

7-1. Measurement

w AR NING
Make sure that there is no person around the articulated
portion of the machine before operating the steering
wheel.
• Oil temperature during measurement : 50
① Disconnect hose (1) from steering·charge pump.
Attach pressure gauge through adapter ⓟ .
• Adapter ⓟ
• Pressure gauge : 0 to 25 MPa (0 to 3,625 psi)
② Confirm that F-R lever is "N".
③ Apply parking brake by pressing parking brake switch
button.
④ Start the engine and set throttle lever to "FULL".
⑤ Turn steering wheel to operate relief valve.
⑥ Read pressure indicated by pressure gauge.
Standard maximum circuit pressure
★
(orbitroll relief pressure + charge relief pressure)
9-010
°C (122
± 5
: G1/2
: 17.6 MPa (2,552
± 1.0 ± 145
°F)
± 9
psi)
1 1
p p
R2-4-09008 R2-4-09008
PG002004 PG002004