Series 60 Low Cranking Speed

To determine if low cranking speed is causing starting difficulty, perform the following steps: ‪

Install a tachometer to the engine and record engine revolution while cranking the engine; refer to OEM for guidelines.

  1. If the cranking speed is greater than 100 r/min, check the fuel supply valve;
  2. If the cranking speed is less than 100 r/min;

Low Cranking Speed Repair

Perform the following steps for low cranking speed repair: ‪

  1. Drain the engine oil.
  2. Remove oil filter(s).
  3. Install new oil filter(s).
  4. Refill the lubrication system with new oil.
  5. Verify low cranking speed repair;
Test Engine with Replaced Oil

Perform the following steps to determine if the replaced oil resolved starting difficulty

Attempt to start and run the engine.

  1. If the engine starts and runs, no further troubleshooting is required. Shut down the engine.
  2. If the engine fails to start and run, check the fuel supply valve

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