68 GTH-4016SR • GTH-4018SR Part No. 57.4400.9203
March 2010
Section 4 • Repair Procedures
REV A
9-3 How to Check the Engine
RPM
1. Take a multimeter and set it on “freq or Hrz”
2. Connect the negative prod to the ground
3. Connect the positive prod to the “W” pin of the
alternator
4. Start the engine
5. Using the manual accelerator, increase
the engine up to 1100rpm (which on the
multimeter corresponds to a reading of 0.40)
MISCELLANEOUS