Fault-Finding - Long 360 Series Service Manual

FAULT DIAGNOSIS CHART
EXCESSIVE EXHAUST
SYMPTOM
CAUSE CHECK
No fuel
1 Fuel level
2 Stop control
2 In run position and linkage free
3 Starting procedure
3 Is it correct
3115 4 Air in system
4 That system is vented and all joints and unions air tight
5•
5 Fuel restriction 5 Filters and pipes clear
6 Fuel contamination
6 That fuel is free of water, dirt, ice and wax
7 Cranking speed
7 Correct Lub, oil, Battery, starter and cable connections
8 Starting aid
8 Correct functioning, Fuel supply and electrical connect1ons
9• 9•
9 Injection timing
9 Pump to engine timing
1lill!i!§ 10•
10 Feed pump
10 Pressure
~
11•
11 Blocked return pipe
11 DPA back leak, return to tank and filter vents are free
12• 12•
12 Poor compression
12 Cyl. comp. Air intake clear. Injector seats. Valve
clearances & timing
14• 14•
14 Fuel atomisation
14 Injectors· type, setting, condition, sealing and evenly
tightened down
15•
15 Fuel tank vent 15 Vent unrestricted
16•
16 Firing order
16 HP pipes fitted in correct order
17 HP pipe restriction
17 HP pipe bores not kinked or reduced at nipples
18•
18 HP leaks
18 HP pipe joint tightness
19•
19 LP leaks 19 Fuel pipes for leaks
~ 20 Idling speed incorrect
20 Engine idling speed setting
~iii§
21•
21 Max. speed incorrect
21 Engine maximum no load setting
22•
22 Accelerator linkage
22 Lever loose on pump, reaches stops. Linl(age wear.
Pedal stop setting
23 Engine mounting
23 Mountings are tight
24 Vibration
24 Vibration not transmitted from elsewhere
25•
25 Overloading
25 Vehicle payload
26•
26 Brakes
26 Brakes not binding
27 F I pump mounting
27 F I pump drive and mounting bolts tight
28• 28•
28 F I pump
28 If 811 else f8ils
rwmove
F I
pa.mp
Mel
send
for specialist check
Engine· 5A