Reelmaster 7000
Hydraulic System
Page 4 -- 34
Lift/Lower Circuit Problems
Problem
Possible Cause
Cutting units will not raise.
NOTE:
Operator must be in seat in
order to raise the cutting units.
Operator seat is unoccupied.
Hydraulic oil level in reservoir is low.
Electrical problem exists that prevents lift control manifold solenoid
valve operation (see Chapter 5 -- Electrical System).
Lift cylinder(s) is (are) damaged.
Lift arm pivots are binding.
Lift/lower circuit relief valve (RV1) in lift control manifold is stuck
open.
Solenoid valve(s) in lift control manifold is damaged or sticking.
Flow divider (FD) in fan control manifold is faulty.
Gear pump section (P3) is worn or damaged (NOTE: A worn or dam-
aged gear pump section (P3) will also affect the traction (charge) and
steering circuits).
Cutting units raise, but will not stay
up.
NOTE:
Lift cylinders cannot provide
an absolutely perfect seal. The lift
arms will eventually lower if left in
the raised position during storage.
Lift circuit hydraulic lines or fittings are leaking.
Cartridge valve in lift control manifold is stuck open.
Air exists in lift circuit.
Lift cylinder is damaged.
Cutting units will not lower.
NOTE:
Operator must be in seat
and traction system must be in mow
speed (4WD) in order to lower the
cutting units.
Operator seat is unoccupied.
Mow speed limiter is in transport (2WD) position.
Electrical problem exists that prevents lift control manifold solenoid
valve operation (see Chapter 5 -- Electrical System).
Lift arm pivots are binding.
Lift cylinder(s) is (are) is damaged.
Lower circuit relief valve (RV2) in lift control manifold is stuck open.
Solenoid valve(s) in lift control manifold is damaged or sticking.
Summary of Contents for Reelmaster 7000
Page 2: ...Reelmaster 7000 This page is intentionally blank ...
Page 4: ...Reelmaster 7000 This page is intentionally blank ...
Page 10: ...Reelmaster 7000 Page 1 6 Safety This page is intentionally blank ...
Page 12: ...0 09375 Reelmaster 7000 Page 2 2 Product Records and Maintenance Equivalents and Conversions ...
Page 34: ...Reelmaster 7000 Page 3 18 Kubota Diesel Engine This page is intentionally blank ...
Page 36: ...Reelmaster 7000 Hydraulic System Page 4 2 This page is intentionally blank ...
Page 45: ...Reelmaster 7000 Hydraulic System Page 4 11 This page is intentionally blank Hydraulic System ...
Page 115: ...Reelmaster 7000 Hydraulic System Page 4 81 This page is intentionally blank Hydraulic System ...
Page 131: ...Reelmaster 7000 Hydraulic System Page 4 97 This page is intentionally blank Hydraulic System ...
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Page 168: ...Reelmaster 7000 Hydraulic System Page 4 134 This page is intentionally blank ...
Page 214: ...Reelmaster 7000 Page 5 46 Electrical System This page is intentionally blank ...
Page 247: ...Reelmaster 7000 Page 7 3 Chassis This page is intentionally blank Chassis ...
Page 264: ...Reelmaster 7000 Page 7 20 Chassis This page is intentionally blank ...
Page 271: ...Reelmaster 7000 DPA Cutting Units Page 8 7 This page is intentionally blank DPA Cutting Units ...
Page 304: ...Reelmaster 7000 DPA Cutting Units Page 8 40 This page is intentionally blank ...
Page 306: ...Reelmaster 7000 Foldout Drawings Page 9 2 This page is intentionally blank ...
Page 310: ...Page 9 6 Reelmaster 7000 Main Wire Harness ...
Page 312: ...Page 9 8 Reelmaster 7000 Seat and Console Wire Harness ...
Page 314: ...Page 9 10 Reelmaster 7000 Power Center Wire Harness ...