How to Solve Perkins 1000 Series 4 Cylinder Erratic Engine Speed at Low Speeds

Some Perkins engines fitted to certain fork lift trucks may run erratically at operation speeds from 750 rev/min to 1250 rev/min. This only occurs when the engine is in the application.

Related Contents:

Perkins EST 2024A & 2023A & 2019A Software Free Download

Perkins SPI2 2018A EPC+Service Manual Free Download

Note: The engine build lists affected are AA70216,AA70218 and AA70219.

If an engine is affected, the governor linkage of the fuel pump should be changed from a single spring link to a two spring link. The Lucas CAV part number for the two spring link is 7139/568A.

When the two spring link is fitted, the link length must be reset to 53,5 mm (2.11 in). Also the governor spring must be changed to Lucas CAV part number 7123/898X and fitted in the 3-2 position.

When these changes are complete, the maximum no load speed must be reset to 2520 rev/min and the data plate of the fuel pump must be changed as follows:
Change the service setting code from 2643C617BM/2/2520 to 2643C623BM/8/2520.
Change the Lucas CAV number from 3348F490 to 3348F491.

 

More trouble repair case for Perkins,pls refer to:Perkins Trouble Repair

auto

Recent Posts

How to Calibrate 2403 Steering Valve for Fendt 800 S4 Tractor

Here is the instruction show you guide on how to calibrate 2403 steering valve for…

11 hours ago

Massey Ferguson Tractor Electrohydraulic Spool Valves Configuration

This function requires all connectors to be disconnected from all electrohydraulic valves on the tractor.You…

3 days ago

How to Remove Center Joint and Center Frame for HITACHI Hitachi EX5600-7B

This instruction show you guide on how to remove center joint and center frame for…

6 days ago

How to Repair Doosan Machine P0100 DTC Signal Error

How to solve Doosan heavy duty machine P0100 fault code signal error of air mass…

2 weeks ago

How to Solve Fendt 800 Vario S4 wayline Running Slow

If the vehicle is oscillating on the wayline or catches up the wayline very slowly…

2 weeks ago

How to Adjust Cruise Control Release Linkage for Kubota L3901 Excavator?

This is instruction show you guide on how to adjust cruise control release linkage for…

2 weeks ago