Measurement Of Hydraulic Pump Case Pressure; Measurement Of Propulsion Pump Case Pressure - Sakai R2-4 Shop Manual

INSPECTION AND ADJUSTMENT

8. MEASUREMENT OF HYDRAULIC PUMP CASE PRESSURE

8-1. Measurement of Propulsion Pump Case Pressure

• Oil temperature during measurement : 50
① Disconnect hose (1) from propulsion pump. 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 Establish a condition in which machine propulsion load
becomes maximum. (Pressure does not build up unless
propulsion load is applied.)
⑦ With propulsion load at maximum, measure pressure
when speed change switch is "
lever is "N", "F", and "R", respectively.
Allowable pump case pressure
★
9-012
°C (122
± 5
: G 3/4
".
" and "
: 0.3 MPa (43.5 psi) or less
°F)
± 9
" and F-R
q q
1 1
R2-4-09009 R2-4-09009
PG002006 PG002006