Toro 03660 - User Manual

Questions and Answers

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Jason CarrollSep 3, 2025
Why is the traction response sluggish on my Toro 03660?
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  Joseph StoneSep 3, 2025
  If the traction response on your Toro Lawn Mower is sluggish, identify and correct the causes affecting traction response. This may be due to low charge pressure, very cold hydraulic oil, the parking brake dragging or binding, a loosened traction pump bypass valve, a damaged flushing valve in the traction pump, a damaged piston pump charge relief valve, a damaged piston pump check relief valve, or a worn or damaged piston pump.
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amandajohnsonSep 2, 2025
What to do if the cutting units raise but will not remain in the raised position on my Toro 03660?
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  Julie GrahamSep 2, 2025
  If the cutting units on your Toro Lawn Mower raise, but will not remain in the raised position, inspect and repair the lift cylinder and check valves. This can happen if the lift cylinder leaks internally, the check valve in the lift control manifold (CV1, CV4, CV5 and CV23) and solenoid valve (SV1 and SV3) leaks, or the pilot piston in the lift control manifold is stuck and is preventing the check valve from seating.
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Nancy MitchellAug 31, 2025
Why won't the front cutting unit motors operate on my Toro 03660 Lawn Mower, but the rear ones will?
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  Charles NorrisAug 31, 2025
  If the front cutting unit motors on your Toro Lawn Mower will not operate but the rear cutting unit motors will operate, test and replace solenoid valve MSV2 if necessary, ensure the mow/backlap lever is fully rotated, and check for electrical issues. This issue may arise if solenoid valve MSV2 on the mow control manifold is faulty, the mow/backlap lever for the front cutting units (MR2) is not rotated fully, an electrical problem exists that prevents the MSV2 solenoid coil on the mow control manifold from being energized, the front cutting reel(s) is binding, or gear pump section (P2) is worn or damaged.
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Christine JenningsAug 29, 2025
Why won't the rear cutting unit motors operate on my Toro 03660 Lawn Mower, but the front ones will?
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  James ArcherAug 29, 2025
  If the rear cutting unit motors on your Toro Lawn Mower will not operate but the front cutting unit motors will operate, test and replace solenoid valve MSV1 if necessary, ensure the mow/backlap lever is fully rotated, and check for electrical issues. This problem may occur if solenoid valve MSV1 on the mow control manifold is faulty, the mow/backlap lever for the rear cutting units (MR1) is not rotated fully, an electrical problem exists that prevents the MSV1 solenoid coil from being energized, the rear cutting reel(s) is binding, or gear pump section (P1) is worn or damaged.
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Andrew NguyenAug 28, 2025
What to do if none of the cutting units will raise or lower on my Toro 03660?
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  mriddleAug 28, 2025
  If none of the cutting units on your Toro Lawn Mower will raise or lower, locate the cause of the trouble and correct it. This could be due to a low oil level in the hydraulic reservoir, the MR1 and/or MR2 in the lift control manifold being in the backlap position, a faulty solenoid valve SVRV on the lift control manifold, an electrical problem preventing the SVRV solenoid coil from being energized, or a worn or damaged gear pump section.
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Amy PenaAug 26, 2025
Why is the hydraulic fluid foaming in my Toro Lawn Mower?
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  Peggy MccormickAug 27, 2025
  If the hydraulic fluid in your Toro Lawn Mower is foaming, correct the oil level, check the type of oil, and fix any air leaks in the pump suction line. This issue may arise if the oil level in the hydraulic reservoir is low, the hydraulic system has the wrong kind of oil, or the pump suction line has an air leak.
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Alexandra RomanAug 25, 2025
Why is the steering inoperative or sluggish on my Toro 03660?
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  Tara JohnsonAug 25, 2025
  If the steering on your Toro Lawn Mower is inoperative or sluggish, identify and correct the causes affecting steering operations. Possible causes include worn or binding steering components, a binding steering cylinder, low oil level in the hydraulic reservoir, a stuck or damaged steering relief valve, internal leaks in the steering cylinder, a worn or damaged steering control valve, or a worn or damaged gear pump section.
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Edward JohnsonAug 23, 2025
What to do if there is no traction in either direction on my Toro 03660 Lawn Mower?
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  Lisa HardyAug 23, 2025
  If you have no traction in either direction with your Toro Lawn Mower, locate the cause of the trouble and correct it. Potential causes include the parking brake dragging or binding, misadjusted or damaged traction control linkage, low oil level in the hydraulic reservoir, a loosened traction pump bypass valve, a damaged flushing valve in the traction pump, a damaged piston pump check valve, low charge pressure, or worn or damaged wheel motor(s) and/or piston pump.