Section 1. specifications, 1 capacities, Fuel tank – JLG 660SJ ANSI Service Manual User Manual
Page 19: Hydraulic oil tank, Hydraulic system (including tank), Torque hub, drive, Engine crankcase, 2 component data, Engine - ford lrg-425, Engine - ford lrg-423

SECTION 1 - SPECIFICATIONS
3120718
– JLG Lift –
1-1
SECTION 1. SPECIFICATIONS
1.1 CAPACITIES
Fuel Tank
39 US. Gallons (147.6 l). (S Models)
30 U.S. Gallons (113.6 l). (A Models)
Hydraulic Oil Tank
Gasoline/Diesel Power - 31 U.S. Gallons (117.3 l) with 10%
air space (S Models) - 30.6 Gallons (115.8 l) with 10% air
space (A Models).
Hydraulic System (Including Tank)
Gasoline/Diesel Power - 37.2 U.S. Gallons (140.8 l) S
Models 36.72 U.S. Gallons (139 l) A Models.
Torque Hub, Drive
17 ounces (0.50 l).
NOTE: Torque hubs should be one half full of lubricant.
Engine Crankcase
Ford LRG-425 Gas w/Filter - 4.5 quarts (4.25 l).
Ford LRG-423 Gas w/Filter - 5.00 quarts (4.73 l).
Deutz F4M1011F Diesel w/Filter - 11 quarts (10.5 l).
Continental TMD27 Diesel w/Filter - 7.00 quarts (6.65 l).
Caterpillar 3044C Diesel w/Filter - 10.6 quarts (10 L)
1.2 COMPONENT DATA
Engine - Ford LRG-425
Fuel - Gasoline.
Oil Capacity.
4.5 Quarts (4.25 l) w/Filter.
Idle RPM - 1000.
Low RPM - 1800.
High RPM - 2800.
Alternator - 40 Amp, Belt Drive.
Battery - 85 Amphour, 550 Cold Cranking Amps, 12 VDC.
Fuel Consumption.
Low RPM - 3.45 GPH (13.06 lph).
High RPM - 4.60 GPH (17.41 lph).
Horsepower - 54 @ 2400 RPM, full load.
Cooling System - 16 Quarts (15.14 l.).
Spark Plug - AWSF-52-C
Spark Plug Gap - 0.044 in. (1.117 mm)
Engine - Ford LRG-423
Fuel - Gasoline.
Oil Capacity.
5.00 Quarts (4.73 l) w/Filter.
4.00 Quarts (3.79 l) w/o Filter.
Idle RPM - 1000.
Low RPM - 1800.
High RPM - 2800.
Alternator - 40 Amp, Belt Drive.
Battery - 85 Amphour, 550 Cold Cranking Amps, 12 VDC.
Fuel Consumption.
Low RPM - 3.45 GPH (13.06 lph).
High RPM - 4.60 GPH (17.41 lph).
Horsepower - 54 @ 2400 RPM, fill load.
Cooling System - 16 Quarts (15.14 l.).
Engine - Deutz F4M1011F
Fuel - Diesel.
Oil Capacity.
5 Quarts (4.5 l) Cooling System.
11 Quarts (10.5 l) w/Filter.
16 Quarts (15 l) Total Capacity.
Idle RPM - 1000
Low RPM - 1800.
High RPM - 2800.
Alternator - 60 Amp, belt drive.
Battery - 1000 Cold Cranking Amps, 210 Minutes
Reserve Capacity, 12 VDC.
Fuel Consumption.
Low RPM - 1.90 GPH (7.19 lph).
High RPM - 2.50 GPH (9.46 lph).
Horsepower - 65 @ 3000 RPM, full load.