Service Bulletin
Toro Customer Bulletin VEH 11-12 Page 1 of 3
Workman Disc Brake Maintenance Update January 5, 2016
Customer Bulletin
Commercial Products
Vehicles
#11-12
Disc Brake Maintenance Update
Product: Workman
®
Series and MultiPro
®
1750
January 5, 2016
Models:
07266/07266TC/07279/07299/07299TC/07273/07273TC/
07359/07359TC/07366/07367/07367TC/07368/07368TC/
07369/07370/07370TC/07371/07371TC07383/07384/
07384H/07384TC/07385/7385H/07385TC/07386/07386H/
07386TC/07387/07387H/07387TC/07390/07390H/
07390TC/41188
Serial Numbers:
290000101-315009999
Situation: Disc brakes have been used on Toro Commercial products for several years, these brakes
offer superior braking power to control of the machine; however, the design possesses different
maintenance requirements when compared with drum type brakes. This bulletin provides updated Toro
recommendations for brake assembly inspection, cleaning and brake system bleeding.
Instructions:
The disc brake design is more exposed to the environment than drum brakes. Because of this fact,
functional surface cleanliness can be an issue. Workman and MultiPro vehicles are operated in
environments where many corrosive compounds are used. These materials can affect disc brake
function if basic inspection and cleaning processes are not followed. Routine maintenance will enable
reliable long-term operation. An audit of 2015 Operator’s manuals for the three product lines indicate
some difference in the maintenance points and intervals for those items. This document will supersede
those recommendations, 2016 manuals for these products will align with these common
recommendations:
Daily – Check brake fluid level
Every 200 hrs. – Check/adjust parking brake lever; Check/adjust service brake pedal;
Inspect service and parking brake calipers
Every 400 hrs. – Inspect/replace service and parking brake pads
Every 1000 hrs. – Inspect/replace brake fluid
Brake Assembly Inspection: (Every 200 hours)
Every 200 hours of machine operation, Toro recommends the four tire and rim assemblies be removed
to allow close visual inspection of the brake caliper assemblies. The inspection should include
confirmation that the caliper assembly pistons are free moving. If they are not free to move within the
brake caliper housing, brake pad drag would be evident when rotating the wheel hub. Accumulations of
dirt, debris or corrosion on the pistons and/or on the guide pins could be root cause of the drag. (See
Figure 1)