Preservation And Storag~ Of Engine - YANGDONG SERIES Y85 Operation & Maintenance Manual

8.CheL:k whe ther the thermostat is in good order.Examine the water dropping out from a
weep hole of the water pump.!t is necessary to renew the water seal,if flowing out too much of
water.
9.Check the wiring contacts of the electric equipment to see whether they are connected
firmly and well. Burnt marks should be removed.
IO.After every
1,000
accumulated operating hours,adJ the following items;
(l )Make an overall check on all parts and components. Make necessary
adjust~ments
and
repaIrs.
(2 )Dismantle the dynamo and starting mutor.Clean out the dirty grease in the bearings and
refull them with clean
grea~e.Check
the pinion of starting motor.
II.After every
1,500
accunulated operating hours,add the following items:
(l ) Remove the cylinder heau,check the valve and valve seats and olher parts of cylinder
head assembly.
(2)Remove the carbon deposits on the surfaces of cylinder head,liner, piston anu piston
ring,etc,and wash down them.
(3) Check and measure wear of the pistons and piston rings.
(4)Check and measure wear of the cylinder liner.
(5) Check and measure wear of the crankshaft main journalb.and crank pins. Clean lube oil
passages of the crankshaft.
(6 )Check wear of the main bearing and connecting-rod bearing shells.
(7)Clean oil passages of the cylinder b,lock and replace lube oil.
IV .Preservation and Storage of Engine
If
the engine is to be put out of service for a comparatively long period of time,lt
1S
necessary to pleserve it according to the following procedure:
1.After the engine stops and still does not cool Yd.drain out cUinpIctely the lube oil,cold
water and fuel immediately.Clean the oil sump and oil f.trainer.
2.Clear out the dust and oil on the engine surface.With antirust oil smear all the unpainted
exposed surfaces of engine except rubber and plastic parts.
3.Heat the filtered lube oil to
110-] 20"C ,until all bubbles ir the surface cf oil Jisappear.
Then pour the dehydrateu oil into the oil sump until oil level reaches the upper mark,ancl
t11m
the engine, in order to make sure lhat the lube system is completely filled up "ith thiF nil.
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