Kohler KDW 502 User Manual

- 91 -
KD 702_1003_1404 Workshop Manual_cod. ED0053029340_1° ed_
10
187
186
184
185
Static injection advance tuning
If the injection advance value found does not correspond to the
previously described value, adjust the screw E and repeat the
test.
Rotating screw E by ½ turn will change the injection advance by
5°. If turned clockwise, injection is advanced.
In the opposite direction, injection is delayed.
Tester and special coupling for injection advance control
(Old-type injection pump)
1 Special coupling. Serial number: 7107-1460-028
2 Injection advance tester. Serial number: 7271-1460-024.
Remove the cap on the pump/injector casing and in its place
screw on coupling 1.
On this coupling tighten the tester 2.
Note:
When reassembling the cap on the pump/injector unit,
check its seal.
TDC (Top Dead Center) references
D coincides with
A = TDC of 1
st
cylinder of all series engines,
of 4
th
cylinder KDW1404.
E coincides with A
= TDC of the 2
nd
cylinder KDW 1003.
F coincides with A = TDC of 2
nd
cylinder KDW 702, of 3
rd
and
2
nd
cylinder KDW 1404.
G coincides with A = TDC of 3
rd
cylinder KDW 1003.
Note: Following the arrow’s rotation direction, the combustion
order for KDW 1003 is D, G, E (1
st
- 3
rd
- 2
nd
cylinder re-
spectively. As to KDW 1404 the sequence is D, F, D, F
(1
st
– 3
rd
– 4
th
and 2
nd
cylinder).
Injection advance references on timing belt protector
The method of checking injection advance is essentially the
same as that described in g. 182 with one difference: instead of
using the device se.no. 7107-1460-048 with which you measure
piston lowering with respect to the Top Dead Centre, you use
references A and C on the timing belt protector and reference D
located on engine pulley.
When D coincides with A the piston has reached its TDC.
When D coincides with C the piston is in injection advance
position.
Fuel system

Kohler KDW 502 Specifications

General

Brand	Kohler
Model	KDW 502
Category	Engine
Language	English