Operation & Maintenance Manual for 12M26 Series Gas Engine
43
possible to meet the operational requirements of the thermal state, to avoid low temperature wear
and prolong the service life of the engine. If you find the water pump leaks, you need to replace
the pump seal.
4.6.3 Operation and maintenance of starter
（
1
）
Starter is a short-time service device. Its starting time shall not exceed 10s every time. The
interval between successive starting shall be longer than 2 min.
（
2
）
The engine shall be preheated when the temperature is below 5
℃
in winter.
（
3
）
Release the starting switch immediately once the engine is started up so as to disengage the
drive gear of starter from the flywheel ring gear.
（
4
）
Energizing the starter before the engine stops running is strictly prohibited, so as to avoid
damage due to collision between the flywheel and the starter gear.
（
5
）
The wiring of a starter must be based on the wiring diagram of the starter during installation.
Make sure that the battery is disconnected from the main starting line of starter.
（
6
）
The fastening pieces of starter and wire insulation must be checked frequently for damage;
the wires shall be well-contacted and the dirt shall be removed.
4.6.4 Operation and maintenance of generator
（
1
）
Reasonable allocation: The basic electricity consumption of common electric appliances in
the complete machine shall be satisfied when the generator is idling. Any unreasonable match
between the generator and electric appliances in the complete machine may cause low battery
energy or even regulator damage or stator burnt-out due to overheating of generator. The
minimum working speed of generator must be guaranteed. If the idle speed of generator is set too
low, the generator speed will be too low, which will cause the above mentioned faults as well.
（
2
）
Secure installation: The generator shall be mounted on engine correctly, securely and
reliably. The mounting bolts must match the mounting holes on generator and be tightened up.
The pulley groove and the driving wheel groove shall be in the same plane. The mounting bracket
of generator must meet the requirements for necessary strength and rigidity; otherwise the
generator may be damaged due to the insecure installation.
（
3
）
The belt tension shall not be overloose or overtight. Usually the belt tension is proper when
the belt can be pressed down by 10 to 20 mm under a force of 150N (15 kilogram force) by hand
at the 1/2 center distance between two pulleys. The belt tension shall be checked once every 2
months of operation. The generator may “rotate less turns” when the belt is overloose, which may
cause insufficient power generation, low battery energy, stator burnt-out and bearing damage, etc.
（
4
）
Keep away from heat source and splashing mud; prevent external splashes from entering
into the generator and causing damage; try to guarantee a good application environment for
generator. Usually the working ambient temperature of generator is between -40
℃
and 93
℃
. The
generator shall be mounted in a place which is away from the heat source upon the approval of
Summary of Contents for 12M26 Series
Page 1: ...12M26 Series Gas Engine Operation Maintenance Manual ...
Page 6: ...Operation Maintenance Manual for 12M26 Series Gas Engine 5 ...
Page 18: ...Operation Maintenance Manual for 12M26 Series Gas Engine 9 1 Belt pulley 2 Gas inlet ...
Page 34: ...Operation Maintenance Manual for 12M26 Series Gas Engine 25 ...
