64 MS 440, MS 440 C
– Remove the clutch –b 5.3
– Remove the brake band –
b 5.4.2
: Pull the worm with drive spring
(arrow) out of the oil pump and off
the crankshaft stub
VA
175RA025
: Remove the drive spring from the
worm if necessary.
VA
176RA245
: Take out the screws (arrows).
– Pull the oil pump out of its seat.
Reassemble in the reverse
sequence.
VA
175RA024
1
: Place a new O-ring (arrow) in the
groove of the oil delivery line.
– Grease the worm at the pump
piston – b 16.
– Fit the oil pump and tighten down
the screws – b 3.5
VA
175RA017
Important!
Ensure that the oil delivery line is
correctly seated.
– Grease the worm with drive ring
before installing it – b 16.
Reassemble the other parts in
reverse order.
Always check the suction hose and
pickup body before disassembling
the oil pump.
– Remove the oil pump – b 11.3.1
: Remove the O-ring (1).
VA
175RA023
8 4
1
7
5
6
3
2
: Use a 2 mm (0.08 in) drift to drive
out the spring pin (6).
: Pull out the control bolt (5).
: Remove the O-rings (7).
: Pry out the plug (8).
: Remove the pump piston (4) with
spring (3) and washers (2).
– Clean the individual parts with
standard solvent-based
degreasant not containing any
chlorinated or halogenated
hydrocarbons and check that the
parts can be reused.
Reassemble in the reverse
sequence.
Always install new O-rings.
– Lubricate the pump piston and
worm with grease before
installing – b 16.
11.3 Oil pump
11.3.1 Removing and installing
11.3.2 Servicing
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