帕金斯柴油發電機組2806搖桿和搖臂軸組件

Rocker lever and rocker shaft assemblies

To remove and to fit

To remove

  Remove the rocker cover, Operation -.

Operation -2

2 The valve rock er levers (A) and the unit injector rocker levers (A2) can move on the shaft (A6) after the four

bolts (A5) have been removed. The shaft (A6) should be kept level when removed from the cylinder head. To

avoid possible personal injury, keep fingers clear of the rocker levers (A and A2) during removal of the

assembly from the cylinder head.

  Remove the four bolts (A5).

4  Remove the shaft (A6), valve rocker levers (A) and unit injector rocker levers (A2) as a unit.

5  Repeat steps   and 2 for the rocker shaft assemblies which remain.

To fit

  Loosen the adjustment screws (A and A4) of each of the rocker levers which have been removed. Install

the rocker shaft assembly in the reverse order to removal.

2  Set the tappet clearances, Operation -4.

  Check/adjust the unit injectors, Operation -.

4  Fit the rocker cover, Operation -.

2800

To dismantle and to assemble

To dismantle

Note: Check the condition of all components and renew any which are worn or damaged.

Operation -

  Slide the valve rocker levers (A) and the unit injector rocker levers (A4) from the s haft (A7).

Note: Fit a new ‘O’ ring seal to any rocker lever adjuster if its button (A) has been removed from the

adjustment s crew (A2).

2  Remove the button (A) from the adjustment screw (A2) in the valve rocker lever (A).

  Remove the button (A6) from the adjustment screw (A5) in the unit injector rocker lever (A4).

4  Repeat steps  to  for the rocker lever assemblies which remain.

2800

To assemble

  Install new ‘O’ ring seals in the buttons (A).

2  Install new ‘O’ ring seals in the buttons (A6).

  To fit the ‘O’ ring seals and buttons to the valve rocker levers, proceed as follows:

a. Support the valve rocker lever (A) in a vice which has soft jaws .

b. Put the ‘O’ ring seal and button (A) on the round end of the adjustment screw (A2).

c. Use a soft hammer to seat the button on the adjustment screw.

4  To fit the ‘O’ ring seals and buttons to the unit injector rocker levers, proceed as follows:

a. Support the unit injector rocker lever (A4) in a vice which has soft jaws.

b. Put the ‘O’ ring seal and button (A6) over the end of adjustment screw (A5).

c. Use a soft hammer to seat the button on the adjustment screw.

5  Repeat steps   and 4 for the rocker levers whic h remain.

6  Fit the assembled rocker levers to the shafts (A7). Ensure that they are fitted to their original positions.