Problem
Possible Cause
No traction exists in either direction.
Parking brake is applied or incorrectly adjusted.
Oil level in reservoir is low.
Hydrostat by--pass valve is open.
Charge pressure is low.
Wheel motor(s) are worn or damaged (see Wheel Motor Efficiency
Test).
Traction pump (P3) is worn or damaged (see Traction Drive Hy-
drostat (P3) Flow Test).
Wheel motor will not turn.
Brakes are binding.
Key on wheel motor shaft is sheared or missing.
Wheel motor is damaged.
Wheel motor will not hold load in
neutral.
Make up fluid from charge pump is not available.
Hydrostat ball check valves are damaged.
Reservoir oil level is low.
Reel motor drive pump is noisy
(cavitation).
Hydraulic pump suction line is restricted.
Hydraulic pump suction line has an air leak.
Reels will not turn.
Solenoid valve S1 is stuck open (not shifting to its energized posi-
tion).
An electrical problem exists (see Chapter 5 -- Electrical System).
Relief valve R1 is stuck open (see Mow Circuit Relief Valve (R1)
Pressure Test).
LC1 logic valve (when Backlap Kit is installed) is stuck open.
Gear pump P1 is damaged (see Gear Pump (P1) Flow Test).
A cutting unit problem exists (see Cutting Unit chapter).
Reel speed is erratic.
Reel speed is low.
Hydraulic manifold reel circuit cartridge is leaking or damaged.
Hydraulic manifold orifice is plugged.
A cutting unit problem exists (see Cutting Unit chapter).
Hydraulic manifold reel circuit cartridge is leaking or damaged.
Excessive internal wear in reel motor exists (see Reel Motor Case
Drain Flow Test).
Greensmaster 3150
Page 4 -- 25
Hydraulic System (Rev. E)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Tags | Toro Greensmaster 3150 |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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