Perkins New 1000 Series, Workshop Manual, Page: 34 / 290

12
34 Workshop Manual, TPD 1350, issue 3
New 1000 Series
To dismantle and to assemble 12-3
To dismantle
1 Remove the clips from both ends of the rocker
shaft. Ensure that the ends of the rocker shaft are not
damaged. Release the location screw (A1) for the oil
supply connection.
2 Dismantle the assembly and make a note of the
position of each component to ensure that they can
be assembled more easily.
To assemble
1 Ensure that the oil holes in the rocker shaft and in
the rocker levers are not restricted.
2 Lubricate the components with clean engine
lubricating oil before assembly. Assemble the
components in the correct order (A) with the arrows
(A2) on the pedestals in the position shown. Ensure
that the location screw (A1) for the oil supply
connection is fitted correctly in the rocker shaft. Fit the
clips to the ends of the rocker shaft.
To inspect and to correct 12-4
To inspect
1 Clean and inspect all the components for wear and
any other damage. Check the clearance of the rocker
levers on the rocker shaft. If the clearance is larger
than 0,13 mm (0.005 in), renew the rocker lever bush
and/or the rocker shaft.
To correct
1 To renew the rocker lever bush, press out the old
bush with a suitable mandrel.
2 Align the lubrication hole of the new bush on the
same side as the rocker lever lubrication hole and
press the bush into position.
3 Ream the bush in the rocker lever to give a
clearance on the rocker shaft of 0,03/0,09 mm (0.001/
0.004 in). Clean thoroughly the bush and check that
the oil hole is free from debris.
1
2
A
A0048A
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