Page 285 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

Mount driving shaft, turn injection pump and pull out the booster pump parts together with the driving shaft
Take off the toothed wheel for driving of the speed controller and buffer for the driving shaft
Checks
Clean pump housing and the different dismounted benzene parts carefully with petroleum.
Check if the parts are worn or cracked; check carefully if working surface have score grooves. Test if springs are
deformed or broken.
Replace damaged parts.
Pump Assembly procedure
Arrange pump housing on plate.
Mount seals on pump housing by means of standard driving mandrel

Mount eccentric ring and corresponding booster pump with blades into pump housing.
Align the suction of diesel is through hole Hole away from inner diameter of Eccentric rign Hole should face RH
side when viewed from governor side. Hole should face governor side

Mount the following parts provisionally driving shaft toothed wheel, controller drive buffer,compensating
disk,Fastening disk,Vane cell booster pump and eccentric ring
Take out driving shaft and fix fastening disc by means of the corresponding screws.

Mount key to driving shaft and insert this assembly into the pump housing in such a way that the key locks into it
seat in the impeller.
Mount operating pin of the injection adjustor in its seat in the coil supporting ring Ensure that the curved washers
are fitted on the out side of the rollers.The conical side must point to the outer ring.
Mount coil supporting ring, in pump housing.
Mount connection pin into piston and insert it into its seat
The spring part of the piston must correspond to the anti pump bore in the pump housing.

Press operating pin into the connection pin of the governor piston.
Ensure that the claw of the drive shaft is positioned towards transversely to it.
Insert locking pin and corresponding locking clamp into connection pin
Mount sealing ring and flat cover Arrange adjustment washer of 1 mm in spring seat and mount spring place
adjustment washer in the cover hollow and mount cover.
Maintain ‘SVS’DIMENSION
Exact adjustment washer quantity is determined on the test bench.
Mount Oldham coupling in its seat.

Place cam disc , on cam rollers
Stop for pump element must point at notch in the driving shaft.
Mount the washer for adjustment of feed start
ADJUSTMENT OF PRETENSIONING OF THE DISTRIBUTOR PISTON RETURN SPRINGS (DIMENSION “KF”)
Place indicating caliper in tool and adjust to zero on surface plate with a pretension of * mm

Mount spring journal, adjustment washers, spring plate and spring, in hydraulic head.
Mount distributor piston together with spring plate and with collar disk in hydraulic head.
Place tool according to figure check.
Test without squeezing of spring if dimensions KF is mm otherwise replace adjustment washers. Place slider in
distributor piston. Lubricating bore hole must be aligned to piston foot.
Only one single adjustment washer must be mounted to the guide journals.

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CITS : Automotive - Mechanic Diesel - Exercise 15.5