PUMP GP-FUEL INJECTION 4P9827 - Caterpillar

The trolling valve is an attachment to the marine transmission. The trolling valve operates only in the forward direction. Refer to the OEM recommendations for the marine transmission for the limits of the engine rpm during trolling.Note: Engine rpm and the marine transmission oil temperature must be within the limits that are specified by the OEM of the marine transmission.It may be acceptable to mark the tachometer and the oil temperature gauges at the trolling limits. Proper monitoring of the tachometer and oil temperature gauges is required in order to help prevent overheating of the clutch plates.Trolling at reduced load for several hours may cause excessive oil consumption and carbon buildup in the combustion chamber. This buildup results in poor engine performance and power loss. Load the engine at full rpm in order to burn the carbon from the combustion chamber. Perform this procedure at four hour intervals during service.Follow the OEM recommendations for operating attachments to marine transmissions for trolling.