Perkins New 1000 Series, Руководство по ремонту, Страница: 32 / 290

12
32 Workshop Manual, TPD 1350, issue 3
New 1000 Series
Rocker cover
To remove and to fit 12-1
Engines are supplied with rocker covers (A) made of
a plastic material or aluminum.
To remove
1 Disconnect the breather pipe.
2 Remove the cap nuts and rubber seal (A1) from the
top of the rocker cover and remove the heat shield, if
one is fitted.
3 Lift off the rocker cover and the joint.
Caution: When the rocker cover is fitted, the cap
nuts are tightened onto the nuts of the rocker
brackets. During removal of the cap nuts, it is possible
to loosen the nuts of the rocker brackets. The nuts of
the rocker brackets should be tightened to the correct
torque every time the cover is removed.
To fit
1 Check the seal of the oil filler cap (B1) and the
sealing washers (B3) for the cap nuts (B2).
Warning! The rocker cover joint may be made from
viton, read the safety precautions in
section 10 for
viton seals.
2 Check the condition of the rocker cover joint (B4).
If necessary, the joint can be removed and renewed.
3 Clean the joint face of the cylinder head and fit the
rocker cover.
4 Fit the sealing washers, the heat shield, if one is
fitted, and the cap nuts.
Caution: Damage to the sealing washer can occur if
the cap nut is not tightened centrally through the
sealing washer and the rocker cover. If the sealing
washer is damaged, it must be renewed.
5 Tighten the rocker cover cap nuts to:
20 Nm (15 lbf ft) 2,1 kgf m for plastic covers.
30 Nm (22 lbf ft) 3,0 kgf m for aluminium covers.
6 Fit the breather pipe.
A
A0045
1
B
A0046
5
4
2
3
1
Purchased from www.WorkshopManuals.co.uk