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1. INTRODUCTION
These instructions are intended as a guide to quick troubleshooting in Kohler gas engines.
The layout SYMPTOM / PROBABLE CAUSE / REMEDY leads to the solution of many minor engine
problems.
At all times, an after-sales technical service is at our customers' disposal for any help to diagnose failures.
2. TROUBLESHOOTING GUIDE
SYMPTOM
Crankshaft will not rotate,
using manual barring device.
Engine does not turn when
pressing the start button
(1)
Electric starter
(2)
Pneumatic starter
(3)
First check that there is no risk for people or equipment and then solve the fault, if any.
CAUTION
Before operating the starter motor or the barring device, make sure the starter air valve is closed or the
starter batteries off in order to avoid personal injuries in case of unintentional start.
PRODUCT INFORMATION
IO-G-T-00-001e
GAS ENGINES TROUBLESHOOTING
PROBABLE CAUSE
Engine-driven machine in gear
Coolant inside cylinder:
1. Damaged head gasket
2. Damaged exhaust manifold gasket
3. Cracked head
4. Cracked liner
5. Cracked crankcase
Seized piston
Bearing stuck to crankshaft
1. Worn or faulty starter batteries
2. Air valve closed or low air pressure
3. Defective starter motor
4. Drive pinion blocked
5. Emergency stop on
6. Alarm activated
INDEX
B
REMEDY
Disengage the driven machine
NOTE: Remove spark plugs to vent cylinders
of accumulated coolant.
1. Change head gasket
2. Change manifold gasket
3. Change head
4. Change liner
5. Repair crack or change crankcase
Change piston, rings and sleeve, as
appropriate.
Change bearings, check crankshaft.
1. Check batteries and change, if necessary
(1)
2. Open air valve or wait until there is
(2)
enough air pressure
3. Change starter motor
4. Unblock the pinion
5. Release emergency stop
6. Check system alarms and reset after
solving the failure
6.1.1
DATE
Dep. 2
February 2016
O&M_2.002211.810_A_10_2016
(3)
1/10
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Table of Contents
Troubleshooting
