Removing Distributor Pump; Fitting Pump And Adjusting Injection Timing; Stanadyne Distributor Pump - Valtra 6000 Workshop Manual

22. Fuel system

2. Stanadyne distributor pump.

A. Removing pump
1. Clean the pump and the surrounding parts carefully.
Remove the delivery pipes, the throttle cable wire from the rev-
olution lever and the stop solenoid wire from the pump. Fit
protective caps on the delivery pipe unions.
2. Remove the cover (+oil filler tube) of the front plastic cover-
ing so that the pump gear wheel becomes accessible.
Note! On some models the safety frame of the fan space
must be removed.
3. Unscrew the gear wheel attaching nut. Detach the gear
wheel by using puller 9052 48900.
Note! If the timing gear casing has not been removed, the
injection pump gear wheel remains in contact with the idler
gear and it is unnecessary to mark the positions of the gears.
4. Detach the injection pump from the timing gear casing.
Clean the sealing surfaces.
Note! In the E ---engines one injection pump fixing bolt is so
called interrupted screw (i.e, it cuts off when it is tightened).
Open this bolt by striking to the bolt outer edge with a chisel
(strike to the opening direction).
B. Fitting injection pump and adjusting
injection timing
1. Turn the crankshaft to a position where the 1st cylinder pis-
ton reaches its compression stroke top dead centre. Then turn
the crankshaft backwards until the timing mark on the fly-
wheel is at the point of locator 9025 99100. (injection in no. 1
cylinder begins).
Note! Distance between the piston top face and the top dead
center with different crankshaft angles, see page 210/7.
2. Remove the small cover plate on the side of the injection
pump. Rotate the pump shaft until the timing marks align (see
arrow in picture above).
3. Place a new sealing ring on the pump flange. Push the
pump into place so that the key on the shaft engages with the
key slot on the gear wheel.
4. Tighten the pump into position, where the timing marks
align.
5. Tighten the gear wheel nut to a torque of 90 Nm. Fit the
small cover onto the side of the pump. Fasten the pump gear
wheel covering (+oil filler tube).
6. Remove the protective caps from the delivery pipe unions
and fit the delivery pipes. Fit the overflow pipe, throttle cable
wire and the stop solenoid wire. Bleed the fuel system (see
instruction C).
Note! Lubrication oil is not needed because fuel in the pump
lubricates the internal parts.
Note! Concerning dynamic adjustment of injection timing on
the E ---engines, see page 223/13.
9025 99100
118
Model
1. 4. 1997
8050-- 8550
1. 11. 1998
Code Page
10
223