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Reelmaster 7000 Hydraulic SystemPage 4 -- 37
Which Hydraulic Tests Are Necessary?
Before beginning any hydraulic test, identify if the prob-
lemis related tothe tractioncircuit, mowcircuit, lift/lower
circuit, steering circuit or engine cooling fan circuit.
Once the faulty system has been identified, perform
tests that relate to that circuit.
1. If a traction circuit problem exists, consider perform-
ing one or more of the following tests: Traction Circuit
ChargePressure,TractionCircuitReliefPressure,Rear
Traction Circuit Relief (RV) Pressure, Traction Circuit
Reducing Valve (PR) Pressure and/or Piston (Traction)
Pump Flow.
2. If a PTO circuit problem exists, consider performing
oneormore ofthefollowingtests:MowCircuit Pressure,
Mow Circuit Relief Pressure, Cutting Unit Motor Case
Drain Leakage and/or Gear Pump P1 and P2 Flow.
3. Ifalift/lowerc ircuitproblem exists,consider perform-
ing one or more of the following tests: Lift/Lower Circuit
Relief Pressure, Lift Cylinder Internal Leakage and/or
Gear Pump P3 Flow.
4. Ifa steering circuitproblem exists,consider perform-
ing one or more of the following tests: Steering Circuit
Relief Pressure, Steering Cylinder Internal Leakage
and/or Gear Pump P3 Flow.
5. If an engine cooling fan circuit problem exists, con-
sider performing one or more of the following tests:
Cooling Fan Circuit and/or Gear Pump P4 Flow.
Hydraulic
System