Kohler command pro CH940 Service Manual page 52

Starter System
12. Install thru bolts and brush holder mounting screws. Torque bolts to 5.6-9.0 N·m (49-79 in. lb.) and brush holder
mounting screws to 2.5-3.3 N·m (22-29 in. lb.).
13. Hook plunger behind upper end of drive lever and install spring into solenoid. Insert mounting screws through
holes in drive end cap. Use these to hold solenoid gasket in position, then mount solenoid. Torque screws to
4.0-6.0 N·m (35-53 in. lb.).
14. Connect positive (+) brush lead/bracket to solenoid and secure with nut. Torque nut to 8-11 N·m (71-97 in. lb.). Do
not overtighten.
Solenoid Tests
NOTE: DO NOT leave 12 volt test leads connected to solenoid for any time over what is necessary for performing
each of individual tests. Internal damage to solenoid may occur.
Disconnect all leads from solenoid including positive brush lead attached to lower stud terminal. Remove mounting
hardware and separate solenoid from starter for testing.
To test solenoid pull-in coil/plunger:
Actuation
1. Use a 12 volt power supply and 2 test leads.
2. Connect 1 lead to flat spade S/start terminal on
solenoid. Momentarily connect other lead to lower
large post terminal.
When connection is made solenoid should energize
(audible click) and plunger retract. Repeat test
several times.
Continuity
1. Use an ohmmeter set to audible or Rx2K scale, and
connect 2 ohmmeter leads to 2 large post terminals.
2. Perform solenoid pull-in coil/plunger actuation test
and check for continuity. Ohmmeter should indicate
continuity. Repeat test several times.
Solenoid fails to activate.
No continuity is indicated.
Plunger fails to stay retracted.
52
Condition
KohlerEngines.com
To test solenoid hold-in coil:
Function
1. Connect a 12 volt test lead to flat spade S/start
terminal on solenoid and other lead to body or
mounting surface of solenoid.
2. Manually push plunger IN and check if coil holds
plunger retracted. Do not allow test leads to remain
connected to solenoid for a prolonged period of time.
Continuity
1. Use an ohmmeter set to audible or Rx2K scale, and
connect 2 ohmmeter leads to 2 large post terminals.
2. Perform preceding solenoid hold-in coil function test
and check for continuity. Meter should indicate
continuity. Repeat test several times.
Conclusion
Replace solenoid.
62 690 01 Rev. J