Service Manual

Reelmaster
®
335-D Page 4 - 7 Hydraulic Flow Diagrams
Hydraulic Flow Diagrams
Oil Cooler
Traction Motor
Steer Cylinder
Orb
No. 2 Reel
Pressure
Motor
Return Suction Flow
3 1
2
Reservoir
No. 2 Lift Cyli
itrol
Val
No. 1 Reel
Val
Check Val
Val
Aux.
No. 3 Reel Motor
nder
No. 3 Lift Cylinder
Steering
Traction Motor
Check
ve
Motor
Lift Valve
Counter Balance
ve
No. 1 Lift Cylinder
ve
Charge Relief
ve
Filter
ENGINE
Traction Pump
Pump
Reel Pump
General Charge Pump Flow
With all controls in neutral and the engine running, oil is drawn from the reservoir by the auxiliary pump. This gear-type pump has a flow divider cover. Priority flow goes to the steering valve, then through the oil cooler, filter, and back to reservoir. Secondary flow goes to the lift valve, then through the counterbalance valve, oil cooler and back to reservoir. The charge relief valve keeps the return flow under pressure so charge oil is always available to the traction and mowing circuits.