Brake Actuator Module; Brake Actuator Module Diagnostic Tips; Test - Toro TimeCutter SW4200 Service Manual
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- Operator's manual (60 pages) ,
- Operator's manual (56 pages) ,
- Operator's manual (60 pages)
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Brake Actuator Module Diagnostic
Tips:
•
Check battery voltage and charging system function.
Under or over voltage can affect how the module
operates.
•
Check the operation of each safety interlock switch
before condemning the Brake Actuator Module or
wire harness.
•
Check the inputs to the Brake Actuator Module from
the safety switches, as shown in this chapter.
•
Check for poor grounds/loose ground connections.
•
Check harness for pinched/broken wires and poor
connections.
•
Check the Brake Actuator Module harness
connection for corrosion. If corrosion is found,
Toro TimeCutter SW/SWX Service Manual
replace the harness and Brake Actuator Module.
•
If the engine shuts off when the handles are pulled
in, remove the brake rods from the Brake Actuator
Module and function test (for testing purposes only):
Test:
A. If the engine still dies when the handles are pulled
IN, the issue is within the electrical system:
- Check for corrosion at the electrical connectors
and pins
- Check the operation of each of the safety interlock
switches and inputs to the brake module
- Check ground quality
- Check for pinched/broken wires
- Inspect and test PTO clutch for shorts and
grounds as shown in this chapter.
B. If the engine now runs normally when handles are
pulled IN, the issue is mechanical:
- Check for binding linkage
- Check for bent brake rods
- Check for debris
- Inspect brake rods pivot point for burs - see
Service Bulletin CNZ #31
- Weak internal motor in the Brake Actuator Module
ELECTRICAL
7-5
7
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Questions and answers
sometime when I make a hard turn to the left on a sw5000 the left hydraulic unit stays locked and the mower will only go to the left. I can keep trying to get ot to free up and it will go back to normal. what could be the fix
The issue could be related to the tracking adjustment of the hydrostatic drive system. If the unit drifts or stays locked when making a hard left turn, follow these steps:
1. Check Tracking Adjustment – Ensure that the unit drives in a straight line without needing to steer it straight. If tracking is off, adjust it as needed.
2. Raise Rear Wheels – Safely lift the unit so that the rear wheels are off the ground.
3. Inspect Hydrostatic Drive System – Look for any signs of binding or excessive resistance in the hydrostatic drive components.
4. Check for Whining Noise – If there is a whining sound when forcing the unit straight, it could indicate excessive load on one of the hydraulic units.
5. Ensure Proper Belt Tension – Verify that the hydrostatic drive belt is properly routed and tensioned.
If the issue persists after these steps, further inspection of the hydrostatic drive system may be required.
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