F-74

TROUBLESHOOTING AND REPAIR

F-74

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ENGINE FUEL SYSTEM VOLTAGE TESTS (continued)

 

 

 

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FIGURE F.27 – PC BOARD

 

 

 

 

 

Return

Return

J1-9 (+), 11 TO 13 VOLTS

 

 

 

 

 

 

 

 

TO FUEL SOLENOIDS

 

 

 

J1-1 (+), BATTERY

 

J1-5 (-), CHASSIS

VOLTAGE INPUT TO

 

PC BOARD

 

GROUND

 

 

Return to Section TOC

Return to Master TOC

 

 

PROCEDURE

 

 

 

1.

Open the doors on the SAE-400 machine.

 

 

NOTE: The secondary solenoid will only have voltage

 

 

WARNING: Secure the

doors in the open

position

if the fuel system temperature switch is closed.

 

 

Consult a Perkins engine service facility for

TOC

 

 

using the door restraint system. If

the

TOC

 

precise information about the temperature

 

machine does not have a door restraint

 

switch and other fuel system electrical compo-

Sectionto

Masterto

 

system, remove

the doors or

securely

nents.

 

 

 

restrain them to prevent them from falling

 

 

 

 

 

 

 

closed.

 

 

 

 

 

Return

Return

 

 

 

 

 

 

 

If battery voltage is present at the solenoids and the

2.

Check the

wiring

and

connections

on

the

fuel pump (If equipped), and the starter motor is crank-

ing the engine normally, the problem is likely in the

 

Idle/Engine protection PC

board, the engine

fuel

 

engine. Engine problems should be diagnosed and

 

 

 

system injection pump solenoids, the fuel system

 

 

 

repaired by a qualified Perkins engine technician.

 

 

 

temperature switch, (The fuel pump for Codes

 

 

 

 

 

 

 

11199 & 11408), and chassis ground. Look for dirty,

 

 

 

 

corroded, or

damaged terminals, including

the

If battery voltage is not present at the solenoids and

 

 

 

Molex terminals connecting the wiring to the PC

 

 

 

fuel pump (if equipped) follow the procedures below.

 

 

 

board. Look for poor crimp connections and dam-

 

 

 

 

 

 

 

aged wiring.

 

 

 

 

 

 

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TOC

3. Make sure the batteries are in good condition, and

 

Section

Master

 

 

are fully charged, then place the run/stop switch in

 

 

 

 

 

 

 

 

the run position. Within 30 seconds, check for bat-

 

to

to

 

tery voltage (11 to 13 VDC), across the primary and

 

 

secondary fuel solenoids, (and the fuel pump for

 

Return

Return

 

 

 

Codes 11199 & 11408). See the wiring diagram.

 

 

 

 

 

 

 

 

 

 

 

SAE-400 SEVERE DUTY

Page 113 Page 115
Page 114
Image 114
Lincoln Electric SVM187-A service manual Engine Fuel System Voltage Tests
Page 113 Page 115

SVM187-A specifications

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