Toro 4021, 4200 User Manual

GREENS REELS #14-21

Greensmaster® Flex 21

February 20, 2006

Reel Is Hard to Turn After Rebuilding

PRODUCT: Greensmaster Flex 21 UNITS AFFECTED: MODEL NUMBERS: SERIAL NUMBERS:

Greensmaster Flex 21 04021 210000101-240000999 Greensmaster Flex 21 Reel 04200 210000101-240000999

SUBJECT: Cutting unit reel is hard to turn due to heavy rolling resistance. SITUATION: Reel shaft seals may be responsible for excessive rolling resistance of

reels during rebuild. The condition is caused by the installer preloading the seals during installation. In many instances the seals will eventually break-in and cause no difficulty. However, in extreme cases, the excessive resistance could cause difficulties such as a slipping reel drive clutch.

CORRECTION: Use the instructions included with this bulletin to install the seals and

confirm that the rolling resistance is within specifications. An alternative would be to convert to the current V-ring seal configuration as described in Greens Reels Bulletin 14-19, which has a lower rolling resistance.

Note: Be sure to inspect for proper mow and traction cable tension as

identified in the Operator’s Manual. Also, be aware that a traction cable set at the maximum tension will reduce the amount of tension available for the mow cable. Do not exceed maximum cable tension values.

PARTS:

WARRANTY: SRT CODE:

DISTRIBUTION: The attached Customer Bulletin may be copied to all customers having

Any parts needed for rebuilding purposes are currently available

through normal distribution channels.

Information Only.

The following code is for distributor planning purposes only.

079-14-052 Reel R&R (includes sharpening) 2.0 hours.

affected product, or instruct customers how to find Service Bulletins on the Toro home page at http://www.toro.com

Customer Service Bulletin Commercial Business Group

Greensmaster® Flex 21 February 20, 2006

Model/Serial Range: Model Number: Serial Numbers:

Greensmaster Flex 21 04021 210000101-240000999 Greensmaster Flex 21 Reel 04200 210000101-240000999

Subject: Rebuilding of reels for proper rolling resistance.

Incorrect installation of the reel seals may result in higher than expected reel drive forces which can affect the life of the reel drive clutch. The Reel Shaft Seal Installation procedure included with this bulletin may be helpful in performing a successful repair. Use this information as a supplement to the information found in the Service Manual.

Before operating a rebuilt cutting unit, the rolling resistance of the reel should be checked (no bedknife contact). The rolling resistance of the reel alone is approximately 15 in-lb (1.7 Nm). The addition of a Groomer will increase rolling resistance by about 6 in-lb (0.7 Nm). In other words, a new or rebuilt cutting unit with a Groomer installed should be about 21 in-lb (2.4 Nm). If the rolling resistance exceeds the specified value, the condition should be corrected.

15 in-lb (1.7 Nm)

Rolling torque

Be sure to inspect for proper mow and traction cable tension as identified in the

Note:

Operator’s Manual. Also, be aware that a traction cable set at the maximum tension will reduce the amount of tension available for the mow cable. Do not exceed maximum cable tension values.

Consider an Upgrade: An alternative to this instruction would be to convert the seal package to the current Vring seal configuration, which has a lower rolling resistance and is easier to install. Contact your local Commercial Products Distributor if you have any questions about converting or the following Seal Installation information in this bulletin.

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