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Reelmaster 5010 SeriesHydraulic System (Rev. C) Page 4 -- 24
Traction Circuit Problems (Continued)
Problem Possible Cause
Wheel motor will not turn Brakes are binding.
Wheel motor is worn or damaged.
(NOTE: If a traction circuit component has internal wear or dam-
age, it is possible that other traction components are also dam-
aged)
Wheel motors will not hold load
when traction pedal is in neutral
Charge pressure is low.
Valve plate and/or piston shoes in piston (traction) pump are
scored.
(NOTE: If a traction circuit component has internal wear or dam-
age, it is possible that other traction components are also dam-
aged)
Mow Circuit Problems
Problem Possible Cause
Front cutting unit motors will not op-
erate but rear cutting unit motors will
operate
Solenoid valve MSV2 on mow control manifold is faulty (NOTE:
Solenoid valves MSV1 and MSV2 are similar and can be reversed
for testing purposes).
Mow/backlap lever for front cutting units (MR2) not rotated fully.
An electrical problem exists that prevents MSV2 solenoid c oil on
mow control manifold from being energized (see Troubleshooting in
Chapter 5 -- Electrical System).
Front cutting reel(s) is binding.
Gear pump section (P2) is worn or damaged.
Rear cutting unit motors will not op-
erate but front cutting unit motors
will operate
Solenoid valve MSV1 on mow control manifold is faulty (NOTE:
Solenoid valves MSV1 and MSV2 are similar and can be reversed
for testing purposes).
Mow/backlap lever for rear cutting units (MR1) not rotated fully.
An electrical problem exists that prevents MSV1 solenoid c oil on
mow control manifold from being energized (see Troubleshooting in
Chapter 5 -- Electrical System).
Rear cutting reel(s) is binding.
Gear pump section (P1) is worn or damaged.
Single cutting unit motor will not op-
erate or rotates slowly
Cutting unit motor is worn or damaged.
Cross-over relief valve in cutting unit motor is stuck or faulty (Reel-
master 5510 and 5610 machines).