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Onan HGJAB Service Manual

Onan HGJAB
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13-4
LPG MODELS
6.5 HGJAE 6.5 HGJAF 5.5 HGJAE 5.5 HGJAF
GENERATOR: 2-Pole Revolving Field, 2-Bearing, Self-Excited, 1-Phase, Vertical Shaft, Capped Digital Voltage Regulation
Power (1.0 PF)
1
6500 watts 5500 watts
Frequency 60 Hertz 60 Hertz
1-Ph, 4-Wire V/A 120 / 240 Volts, 27 Amps 120 / 240 Volts, 22.9 Amps
Speed 3600 rpm 3600 rpm
FUEL CONSUMPTION:
No load
2.2 lbs/h (1.0 kg/h) 2.2 lbs/h (1.0 kg/h) 1.8 lbs/h (0.8 kg/h) 1.8 lbs/h (0.8 kg/h)
Half load
3.9 lbs/h (1.8 kg/h) 3.9 lbs/h (1.8 kg/h) 3.3 lbs/h (1.5 kg/h) 3.3 lbs/h (1.5 kg/h)
Full load
5.3 lbs/h (2.4 kg/h) 5.3 lbs/h (2.4 kg/h) 4.6 lbs/h (2.1 kg/h) 4.6 lbs/h (2.1 kg/h)
ENGINE: Air-Cooled, 4-Cycle Spark-Ignited, OHV, 90° V Twin Cyl, Vertical Shaft
Fueling Method Air/Fuel Mixer Air/Fuel Mixer
Governor Mechanical Mechanical
Speed 2880 rpm 2400 rpm
Bore 3.15 in (80 mm) 3.15 in (80 mm)
Stroke 2.56 in (65 mm) 2.56 in (65 mm)
Displacement 39.8 in
3
(653 cc) 39.8 in
3
(653 cc)
Comp. Ratio 8.0 : 1 8.0 : 1
Cyl. Comp. Test 153-188 psi 153-188 psi
Oil Capacity 2.0 quart (1.8 l) 2.0 quart (1.8 l)
Valve Lash (Cold) 0.004 in (0.10 mm), Intake & Exhaust 0.004 in (0.10 mm), Intake & Exhaust
Spark Plug 18–25 lbs-ft (23–32 N-m) 18–25 lbs-ft (23–32 N-m)
Ignition Timing 20° BTDC, non-adjustable magneto 20° BTDC, non-adjustable magneto
Magneto Air Gap 0.012 in (0.3 mm) 0.012 in (0.3 mm)
Spark Plug Gap 0.025 in (6-7 mm) 0.025 in (6-7 mm)
HYDRAULIC PUMP: Fixed-displacement gear pump—1.8 gpm @ 2500 psi Fixed-displacement gear pump—1.6 gpm @ 2500 psi
DC SYSTEM:
Battery Voltage 12 volts 12 volts
Battery Charging 10 amps regulated 10 amps regulated
Min. Battery CCA 450 @ 0° F (–18° C) 450 @ 0° F (–18° C)
INSTALLATION:
Exhaust O. D. 1-1/4 in 1-1/4 in
Max. Exhaust Back
Pressure
35 in (889 mm) WC 35 in (889 mm) WC
LPG Vapor:
Connection
Pressure
3/8–18 NPTF
9-13 in (228-330 mm) WC
3/8–18 NPTF
9-13 in (228-330 mm) WC
LPG Liquid:
Connection
Pressure
1/4–18 NPTF
Tank Pressure
1/4–18 NPTF
Tank Pressure
Hydraulic Fluid
Transmission or Petroleum-Based Hydraulic Fluid—Operating
Viscosity: 80-1000 SSU—Maximum Start-Up Viscosity: 4000 SSU
Transmission or Petroleum-Based Hydraulic Fluid—Operating
Viscosity: 80-1000 SSU—Maximum Start-Up Viscosity: 4000 SSU
Hydraulic Pump Inlet
Conditions
Not to exceed 5 in Hg Vacuum or 20 psi Pressure Not to exceed 5 in Hg Vacuum or 20 psi Pressure
Hydraulic Pump Con-
nections
Outlet
Inlet
3/4-16 UNF-2B SAE
7/8-14 UNF-2B SAE
3/4-16 UNF-2B SAE
7/8-14 UNF-2B SAE
Noise dB(A)
2
67 75 67 75
Weight 290 lb (132 Kg) 239 lb (107 Kg) 279 lb (127 Kg) 228 lb (104 Kg)
Compartment
(H x D x W)
3
HGJAD/HGJAE: 17.2 in x 23.2 in x 34.6 in (438 mm x 589 mm x 879 mm)
HGJAF: 16.5 in x 22.8 in x 27.9 in (420 mm x 579 mm x 709 mm)
1. A genset with an hydraulic pump is rated with the pump idle.
2. Measurements @ 10 ft (3 m) in a typical installation, under an 4 kW load.
3. With 1/2 in. clearances. See the Installation Manual for additional considerations when sizing the genset compartment.

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Onan HGJAB Specifications

General IconGeneral
Fuel TypeGasoline
Power Output5500 Watts
Voltage120/240V
StartingElectric
Engine TypeOHV
Noise Level68 dB
Outlet Types1 x 120/240V 30A Locking

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