Perkins New 1000 Series, Руководство по ремонту, Страница: 95 / 290

Workshop Manual, TPD 1350, issue 3 95
14
New 1000 Series
Balancer unit
To remove and to fit 14-12
To remove
1 Drain the lubricating oil from the sump and remove
the sump,
see operation 19-3 .
Warning! The weight of the unit is approximately 25
kg (55 lb).
2 Provide a support for the balancer unit before
release of the setscrews from the engine.
3 Release the setscrews and lower carefully the
balancer unit. Make a note of the positions of the
setscrews of different lengths.
To fit
1 Ensure that the contact faces of the cylinder block
and of the balancer unit are clean and that the two
thimbles (A1) are fitted correctly to the cylinder block.
2 Set the piston of number 1 cylinder to TDC, see
operation 17-1 .
3 Before the balancer unit is fitted, ensure that the flat
faces of the balance weights are level with each other
(B1) and the weights hang down away from the
cylinder block (B2). The timing of the balance weights
to the drive shaft is correct when the large hole and
small hole in the front of the drive shaft gear are in the
positions shown in the illustration (B).
Note: If the gear position shown in (B) cannot be
obtained, then the balancer must be partially
dismantled and the timing corrected (
page 99 /A).
4 Fit the balancer unit to the cylinder block with the
correct screws in the centre positions of the balancer
frame. Ensure, when the idler and crankshaft gears
are in mesh, that the flat faces of the balance weight
are level with each other and that they are towards the
cylinder block. Check that the balancer unit is fitted
correctly on the thimbles and fit the remainder of the
setscrews in their correct position. Tighten the
setscrews to 54 Nm (40 lbf ft) 5,5 kgf m.
5 Rotate the crankshaft through two turns to ensure
that it is free to rotate.
6 Fit the lubricating oil sump, see operation 19-3 and
fill the sump to the correct level with an approved oil.
1
A
A0111
2
B
A0112
1
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