Inspect Coolant Hoses (Lp, Dual Fuel Engines Only); Lp Regulator/Converter Inspection (Lp, Dual Fuel Engine Only); Fuel Lines & Fittings - Check; Inspect Mixer Assembly (G420F(E) Engine Only) - Doosan GC15S-5 Operation & Maintenance Manual

Inspect Coolant Hoses (LP, Dual
Fuel Engines Only)
1. Visually inspect coolant hoses and clamps.
Remember to check the two coolant lines that
connect to the pressure regulator/converter.
2. Replace any hose that shows signs of swelling,
cracking, abrasion or deterioration.
2
(1) LP Regulator/Converter
(2) Coolant hose
LP Regulator/Converter
Inspection (LP, Dual Fuel Engine
Only)
1. Visually inspect the pressure regulator/converter
housing for coolant leaks.
pressure regulator/converter section of the
service manual if maintenance is required.
NOTE : For pressure testing and internal inspection
of the pressure regulator/converter, refer to
the pressure regulator/converter section of
the service manual.
1
Refer to the
Fuel Lines & Fittings - Check
Visually inspect fuel lines and fittings for physical
damage. Replace as required.
(1) Fuel line
(2) LP mixer
(3) Throttle Assembly
Inspect Mixer Assembly (G420F(E)
Engine Only)
Refer to the LP mixer section of the engine service
manual for procedures.
Inspect Throttle Assembly
(G420F(E) Engine Only)
1. Visually inspect the throttle assembly motor
housing for coking, cracks and missing cover-
retaining clips.
necessary.
NOTE : Refer to the LP mixer and throttle section of
the service manual for procedures on
removing the mixer and inspecting the
throttle plate.
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Maintenance section
2
1
3
Repair and/or replace as