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TEST NO. 3: Charge Pump (P2) Flow
A
P1
B
P2
R2
R1
IMPLEMENT
RELIEF
CHARGE
RELIEF
CHARGE
CHECK
CHARGE
CHECK
CHARGE
PUMP
TRACTION
PUMP
TO
WHEEL
FROM
WHEEL
FROM
SHUTTLE
TO
LIFT
FROM
OIL
COOLER
1
2
3
4
HYDROSTAT
FORWARD
ACCELERATION
VALVES
VALVE
VALVE
MOTORS
MOTORS
VALVE
VALVE
FILTER
TANK
Figure 14
1. Lift valve (SP 2020/3020) 3. Lift valve (SP 5020) 4. Hose from pump (SP 5020)
2. Hose from pump (SP 2020/3020)
Hydraulic System (Rev. A) Page 4 – 24 Sand Pro 2020/3020/5020