Kohler COMMAND PRO CS10, Руководство по обслуживанию

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8.18
Section 8
Electrical System and Components
Problem Test Conclusion
1. Test battery on unit.
a. Connect a DC voltmeter across the
battery terminals and read battery voltage
(key switch ‘‘off’’).
b. Turn key switch to ‘‘start’’ position and
read battery voltage again. Turn switch
‘‘off’’.
1. a. Battery voltage should be at least 12 volts
If low charge battery.
b. Battery voltage should not fall below 9
volts during cranking. If it does, battery
may be faulty or there may be a short in
the starting circuit. Have battery load
tested. If battery passes load test, check
circuitry.
Starter Motor
Does Not
Operate With
Key Switch
2. Remove the electric starter cover panel and
check the fuse inside the plastic holder. The
fuse outside the holder is a spare.
2. If fuse is blown, check for a wiring problem
(bare wire, short circuit). Correct problem and
replace fuse. Try to start engine. If it still won’t
start, go to step 3.
3. Disconnect the red/white solenoid lead from
red/white switch lead at the bullet connection.
Be sure transmission is in neutral and PTO is
off. Connect one end of a jumper lead to the
positive terminal of the battery. Connect the
other end to the terminal of the red/white
solenoid lead.
3. If solenoid engages and starter begins to
crank, the key switch is faulty, or there is a
wiring problem to/from the key switch. Check
wiring and test key switch circuits with an
ohmmeter.
4. Use a known, good, fully-charged battery and
jumper cables to test starter motor. Be sure
the transmission is in neutral and PTO is ‘‘off’’
Remove the heavy lead from the post terminal
on the starter. Connect one end of the positive
jumper cable to the post terminal and connect
the other end to the positve terminal of the
battery. Connect one end of the negative
jumper cable to the negative terminal of the
battery. Touch the other end of the negative
jumper cable to a bare surface on the
crankcase or to the starter housing.
4. When negative jumper cable is touched to
crankcase or starter housing, starter motor
should operate. If it does, continue with step 5.
If starter does not operate, refer to the servicing
procedures for the starter motor and check out
the brushes and armature. Repair or replace as
required.
5. a. The resistance of the energizing coil should
be at least 3.4 ohms. If the meter reading is
less than 3.4 ohms, or an open circuit is
indicated (infinity ohms), the solenoid is
faulty and must be replaced.
b. The meter should indicate an open circuit
(infinity ohms, no continuity).
c. When the circuit is completed, applying 12
volts to the energizing coil, an audible click
should be heard as the solenoid engages,
and the ohmmeter should then indicate
continuity between the large terminals. If
the results are other than indicated, replace
the solenoid.
5. Disconnect the leads from the starter solenoid
and remove it from the starter for testing. See
Figure 8-21 on page 8.19.
a. Set an ohmmeter on the Rx1 scale and
zero the meter. Connect one ohmmeter
lead to the terminal of the red/white lead
from the solenoid. Connect the other
ohmmeter lead to the solenoid mounting
bracket.
b. With the ohmmeter still on the Rx1 scale,
connect the leads to the two large post
terminals.
c. Leave the ohmmeter leads connected to
the large terminals. Connect a jumper
lead from the positive terminal of the
battery to the terminal of the red/white
solenoid lead. Connect another jumper
lead from the negative terminal of the
battery to the solenoid mounting bracket.
Troubleshooting Guide – Electric Starting System