Kohler KDW 1603 - Electric Fuel Pump (24 V); Injection Pump; Injection Pump Disassembly

152
151
153
10
- 78 - - 78 -
1603-2204 2204/T
Ø7mm Ø7mm
Electric fuel pump (24V)
Theuseoftheelectricpumpisforeseenforcertainapplications
(wheretheenginehastobestartedatverylowtemperatures).
Assembly notes:
Whentheelectricfuelpumpisinstalled in a diesel engine,it is
necessaryto:
1) Removethelterttedatthepumpintake(intakeside).
2) Inserttheprelterupstreamofthepump(intakeside).
3) Theelectricpumpontheapplicationmustbeatsuchaheight
from the minimum tank level that it generates a maximum
pressuredropequaltoacolumnof500mmofwater.
4) Avoidrunningdryduetoemptyingoftheintakepipeline,inserting
anon-returnvalve.
Features:
Pressure:0.44/0.56bars
Maxcapacity:100l/h
Features
Pumping
Sealing
valve
Injection pump disassembly
Releasethespringfromthecapandremovetheplunger.
Two pinskeeptheuppercapconnectedtothepumpbody;pry
withatoolbetweenthepumpbodyandthecap.
Injection pump components:
1Deliveryunion  8 Spring
2Spacer   9 Uppercap
3Spring   10Plungerpumping
4Gasket   11Lever
5Deliveryvalve  12Pin
6Gasket   13Body
7 Cap
AFuelfeedunion
BFueldischrgeunion
CPumpange
DBarrelpumping
EFuelcontrolhelix
Note: Union A and B, ange C and barrel D form an integral
partofthepumpbody.
Support
clump
Intake
side
Fuel system
Workshop Manual KDW 1603_2204_2204/T _ cod. ED0053029180 - 1° ed_rev. 00
Injection pump
Theinjectionpumpofasimplied Qtypehasbeendesignedby
KOHLER for installation on engines of the KDW  1603-2204-
2204/Tseries.
The injection system includes three or four separate pumps
eachofwhichfeedsacylinder.
Located on the crankcase at the level of the corresponding
cylinder,pumpsaredirectlyoperatedbythecamshaft.
AllhighpressuretubesbetweeninjectorandpumpA featurethe
sameshapeanddimensions.
Volume25mm
3
1holeØ0,81
Volume25mm
3
3holesØ1,5