Measurement Of Machine High/Low Speed Change Circuit Pressure; Measurement - Sakai R2-4 Shop Manual

5. MEASUREMENT OF MACHINE HIGH/LOw SPEED
CHANGE CIRCUIT PRESSURE
• Since oil in charge circuit is supplied from steering
circuit, confirm that steering operation is normal before

measurement.

5-1. Measurement
• Oil temperature during measurement : 50
① Disconnect hose (1) from valve. Attach pressure gauge
through adapter ⓜ .
• Adapter ⓜ
• Pressure gauge : 0 to 5 MPa (0 to 725 psi)
② Confirm that F-R lever is "N".
③ Apply parking brake by pressing parking brake switch
button.
④ Set speed change switch to "
⑤ Start the engine and set throttle lever to "FULL".
⑥ Read pressure indicated by pressure gauge.
Standard charge relief valve setting
★
°C (122
± 5
: G1/4
".
: 2.4 MPa (348
± 0.2 ± 29
°F)
± 9
psi)
INSPECTION AND ADJUSTMENT
Speed change solenoid valve Speed change solenoid valve
1 1
m m
R2-4-09006 R2-4-09006
PG002002 PG002002
9-007