- 25 -
KD 477-2 Workshop Manual_cod. ED0053029370_
1° ed
_ rev.
00
X
30
31
32
0,010 ÷ 0,050
0,100
0,094 ÷ 0,144
0,294
18,5
13
16,9 ÷ 17,4
53
35
69,2
0,3
2,5
C
D
E
F
29,745 ÷ 29,770
40,551 ÷ 40,576
30,030 ÷ 30,60
17,920 ÷ 17,940
29,700
40,45
30,10
17,89
Fitting mm
Max. wear mm
Fitting mm
Max. wear mm
Measurement
Max. wear mm
Dimensions mm
Governor lever and spring
Check that the shoes (
S
, fig. 30) are level and that the springs have
not lost their elasticity. Renew any excessively worn parts after con-
sulting the spare parts catalogue.
Supplement and governor spring dimensions (fig. 30):
Supplement (H)
Governor (N)
Spring
Load
kg
Nr of
windings
Lenght under
load mm
Lenght
mm
Oil pump checking
The pump is of the lobed rotor type driven by the camshaft.
Dismantle pump and check rotors.
Check lobes and centers and if they are worn, replace rotors.
Check the amount of pump wear, measure rotor
A
and rotor
B
(see
fig. 31), and compare to the following table:
If wear exceed these figures, replace complete pump.
The coupling clearance between oil pump external rotor and base-
ment housing is:
The axial clearance of the rotors (fig. 32) should be between:
CHECKS AND OVERHAUL
