Perkins 900 Series Workshop Manual page 230

14
To maintain the brush gear and the commutator
M127 Starter motor
Repair of this starter motor is difficult. If necessary, remove the starter motor for specialist repair.
To test on the engine
1 Ensure that the battery is fully charged.
Turn on the lights and operate the starter switch. If no lights are fitted to the machine, connect a voltmeter
across the battery terminals and operate the starter switch.
2 If the starter does not operate but the lights keep their power or there is no voltage drop across the battery,
check the switch and all the connections and wires. Slow action of the starter can be caused by faulty
connections.
Note: Failure to engage smoothly between the starter and the flywheel can be caused, on some types of
starter motor, by dirt on the helical grooves of the starter motor drive. This can prevent free pinion movement.
3 Clean the shaft thoroughly with gasolene, or a fluid made especially for the purpose, and apply a small
quantity of Aero Shell 6B or its equal.
220
This document has been printed from SPI². Not for Resale
Operation 14-7
Operation 14-8
Workshop Manual, TPD 1345E, issue 3
900 Series