Service Bulletin

Customer Bulletin
Commercial Products
Rotaries #08-50
Potential Steering Hardline Contact
with Engine Oil Cooler
Product: Groundsmaster
®
4300
April 19, 2017
Affected Units:
GM 4300 Yanmar Powered
Models:
30674
Serial Numbers:
315000001-316002028
Situation:
A steering hard line could contact the bottom of the engine oil cooler. If this contact continues, the
steering hard line will wear and may ultimately fail.
Instructions:
During maintenance, inspect the area near the engine oil filter/cooler to ensure there is ample
clearance between the cooler and the steering hard line. If the hard line is contacting the engine oil
cooler, bend the line down, away from the cooler until it clears. Inspect the hard line for any damage
that could result in failure.
Please contact your local Toro Commercial Products distributor if you have questions or need
assistance to perform this inspection and repair. Reference Commercial Service Bulletin Rotaries
08-50 “Potential Steering Hardline Contact with Engine Oil Cooler” dated April 19, 2017 when
making your inquiry.
Figure 1
Area to check for adequate clearance (¼” or 6 mm) between hard line and