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Onan marquis gold 5500 service manual - |
Onan marquis gold 5500 service manual
Remove the rotor drive pulley. See Sec- tion 7. Drive Belt System. Remove the generator end bell. Pull the rotor assembly straight up, taking care not to damage rotor or stator windings.
Rotor Reassembly Reassembly is the reverse of removal. Relubricate the bearing bores in the end bell and base with mo- lybdenum disulfide paste or equivalent. Rapidly pressing the switch to START 6 times dur- ing the first minute after startup puts the genset con- 5. Ignition Coil Resistance Test: If spark is weak or 2. Remove the eight fan shroud bolts and remove inconsistent across either spark plug, check ignition the fan shroud Figure Page Exhaust System The genset exhaust system must be gas-tight and the person performing the modification or installing prevent entry of exhaust gases into the vehicle inte- the unapproved parts.
Contact an Onan dealer for rior. Removing Exhaust Manifold Follow the instructions in the kit when a muffler and torque the flange nuts to 10 lb-ft mounting a replacement muffler. Page 47 2. Overlap- ping pipe should be slotted Figure Do not route the tail pipe near fuel lines or fuel tanks. Page 48 7. Do not terminate the tail pipe underneath the vehicle.
Extend it a minimum of 1 inch 25 mm beyond the perimeter of the vehicle Figure Support the end of the tail pipe such that it cannot be pushed in and up under the skirt of the vehicle. Page Fuel System 8. HGJAD 6. Page 50 Reassembly ant. Clean the threads in the manifold of the old sealant. Torque the stud to 5. Reassembly is the reverse of disassembly. Always Make sure the air intake fits through the opening in use new gaskets when reassembling.
Note the the base and that the engine breather tube is con- marking on the gasket between the air filter enclo- nected between the air filter enclosure and the cylin Page 51 Fuel Rail and Injectors tor from the fuel rail, gently pry apart the two sides of the clip on the injector. Replace an injector if electri- The rail-injector-regulator assembly Figure is cal resistance is not approximately Page 52 Fuel Pressure Regulator The fuel pressure regulator body Figure is re- moveable from the rail assembly by disconnecting the vacuum hose and removing the circlip.
Apply light motor oil sparingly to the two O-ring seals when reassembling. The throttle plate is mounted on the same ball bearing-mounted shaft HOOK as the actuator rotor. The Model HGJAD kits include fill neck adaptors for fuel supply and return connec- tions at the tank and are specific to each make and model of vehicle. The right kit must be used. Follow the instructions in the kit when replacing a pump as- sembly. Pull away the air filter enclosure and carburetor. Page 58 Carburetor 1.
Apply 12 VDC across the heater terminals. The choke should open fully in 2 to 3 minutes. The carburetor Figure is not likely to cause 2. Check the heater alignment marks and realign problems and should be replaced only after all other if out of alignment. To remove and replace the cutoff sole- tive electric fuel pump for the Onan-sup- noid: plied fuel pump. The output pressure from 1. Remove the carburetor. The tubing separate fuel tank for the genset. The genset must Disconnect the governor linkage.
Remove the air filter cover and filter element and remove the two support screws in the back Before servicing a Low-Pressure Vapor Withdraw- of the filter enclosure as well as the two mixer al LPG fuel system, check to see that the LPG con- mounting nuts.
Attach a soap bubble to the hose barb at the regulator outlet. Test for Leakage: If there is a smell of gas when the The genset can draw fuel away from other ap- genset is not running, or any other reason to sus- pliances and cause a flame out.
Page 65 High-Pressure LPG Converter Regulator genset is not running, or any other reason to sus- pect that the valve Figure is leaking, remove High-Pressure LPG Models have a converter liquid the solenoid and connect the inlet of the valve to a to vapor that also meters fuel to the carburetor Fig- source of compressed air psi maximum.
Do not run wiring and fuel lines together. Remove the filter at the genset supply inlet Fig- ure and clean off debris from the filter and iron Testing for Gas Leaks: Upon completing the filings from the magnet. The easiest way is to hook both ends of the throttle plate in the carburetor or mixer to main- link and spring while the governor arm is detached. Page 68 2. When the engine is warm remove all loads and hunts, move the spring hook one or two adjust the idle throttle stop screw to obtain notches away from the governor shaft and re- 51 to 53 Hz on a 60 Hz genset or 41 to 43 Hz check frequency and droop.
Do not con- duct this test near fuel tanks or when flammable 1. Unless it has already been performed, discon- vapors are present. Ac- cess to Cylinder No. See Page , or , depend- ing on fuel system. Note: For accurate adjustments, valve lash must be adjust when the engine is at room tem- perature. Insert the push rods into the hollows in the tappets in the crankcase. Piston Rings Install the oil ring bottom first, then the middle ring and last the top Figure The top ring can be installed either side up.
Assemble in the respective cylinder with the markings on the main bearing cover side. Page 78 Crankshaft End Play Check and adjust crankshaft end play with spacer shims. Three thicknesses are available: 0. Measure and record the A and B distances Figure These are newer, stronger Page 80 Lubricating Oil Pump The crankshaft and camshaft journals are pressure lubricated, while the cylinders and valve system are lubricated by the oil mist in the crankcase.
The oil pump is driven by the camshaft through a coupling on the end of the camshaft. A full-flow oil filter and low oil pressure cutoff switch are mounted external- ly Figure Page 81 Oil Control Leaf Valves A leaf valve is secured by two screws and a retainer plate in the push rod compartment along side each cylinder Figure The valves control the mist of crankcase gases and oil that pass thought the heads lubricating the valve system. The governor gear assembly rotates on a shaft projecting from the bearing cover and snaps in place in the grove in the shaft Figure Page Hydraulic Pump Hydraulic Pump The optional hydraulic pump, when provided, is 3.
Support, restrain and protect hydraulic hose as mounted atop the engine Figure See Sec- necessary to prevent chaffing. Specifications regarding hose fittings, fluid 4. Do not bend hose tighter than the hose specifications and inlet conditions. Page Troubleshooting Press fore performing any maintenance or service.
Stop once to cause the two-digit, second-lev- el fault code to blink. Only trained and experienced persons with knowledge of fuels, electricity, and machinery hazards should perform genset service. See Safety Precautions. Logic: To start or stop — Many common Onan RV repair parts on hand to. Author lamminh View Download Lap Bgm Documents. Franz Kriener Documents.
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