Service Bulletin

Ref: 05-11 Copyright, 2003. The Toro Company

Customer Service Bulletin

Commercial Business Group

Groundsmaster

4000 Series

Date: May 5, 2003

Model/Serial Range: Model Numbers:

Serial Numbers:

30410 2100000101-230099999

30411 2300000101-230099999

30800 2200000101-230099999

Subject: Difficult Engine Starting After Extended Periods of Non-Use.

The Kubota 2003T engine used in the Groundsmaster 4000 Series Tractors have been

reported as difficult to start, exhibiting excessive crank time, or producing excessive

white smoke. It also can run rough for the first few minutes of operation. The listed

units may exhibit objectionable starting behavior after extended periods of non-use

(overnight or after sitting idle all weekend). This may be caused by air leaking into the

fuel supply circuit.

To correct this issue, slightly open the “Jet Start” air bleed valve located on the injection

pump assembly. The valve should only be opened from the closed position 1/10

1/8

of turn maximum. This adjustment will allow any accumulated air in the system to

be purged by the low-pressure fuel transfer pump during the initial glow cycle. The Jet

Start Valve should be left in this position at all times during normal operation.

NOTE: This recommendation assumes that the glow plug and fuel delivery

systems have been verified to operate correctly per Service Manual process.

Please contact your local Toro Commercial Products Distributor for further information.

“Jet Start” Valve

(100-9202)

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Customer Service Bulletin Commercial Business Group Groundsmaster® 4000 Series Model/Serial Range: Model Numbers: 30410 30411 30800 30800 Subject: Date: May 5, 2003 Serial Numbers: 2100000101-230099999 2300000101-230099999 2200000101-230099999 2200000101-230099999 Difficult Engine Starting After Extended Periods of Non-Use. The Kubota 2003T engine used in the Groundsmaster 4000 Series Tractors have been reported as difficult to start, exhibiting excessive crank time, or producing excessive white smoke.