SPECIFICATIONS (Cont’d)
Fluid Lines . . . . . . . . . . . . . . . . . . . . . . . . . Fluid Type . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Function Time: Raise Lift Arms . . . . . . . . . . . . . . . . . . . . Lower Lift Arms . . . . . . . . . . . . . . . . . . . . Bucket Dump . . . . . . . . . . . . . . . . . . . . . . Bucket Rollback . . . . . . . . . . . . . . . . . . . ELECTRICAL Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Instrumentation . . . . . . . . . . . . . . . . . . . . .
DRIVE SYSTEM Main Drive . . . . . . . . . . . . . . . . . . . . . . . . . Transmission . . . . . . . . . . . . . . . . . . . . . . . Final Drive . . . . . . . . . . . . . . . . . . . . . . . . . Total Engine to Wheel Reduction . . . . . . . . . . . . . . . . . . . . . . . . . Axle Size . . . . . . . . . . . . . . . . . . . . . . . . . . . Wheel Bolts . . . . . . . . . . . . . . . . . . . . . . . .
553 Engine Driven, Gear Type 8.5 GPM (32,2 L/min.) @ 3000 RPM 2000 PSI (13790 kPa) 10 Micron replaceable cartridge in the hydrostatic pump charge line. Double–acting 2.0 (50,8) 3.0 (76,2) 1.25 (31,8) 1.50 (38,1) 22.2 (563,9) 12.4 (315,0) 3–spool, series type, open center w/float detent on lift and detent on auxiliary SAE standard tubes, hoses & fittings Bobcat Fluid (P/N 6563328) if fluid is not available, use 10W–30/10W40 Class SE motor oil for temperature above 0°F (–18°C) 5W–30 Motor Oil for temperatures below 0°F (–18° C). 4.1 Seconds 3.5 Seconds 2.5 Seconds 1.9 Seconds 55 amp open 12 Volt, 425 cold cranking amps @ 0° F (–18 ° C) 75 minute reserve capacity 12 Volt Straight Drive Gauges: Hourmeter, Fuel, Voltmeter, Engine Temperature. Warning lights: Engine Temperature, Engine Oil Pressure, Hydraulic oil Temperature & Pressure Hydrostatic 4 wheel drive Infinitely variable tandem hydrostatic piston pumps, driving 2 fully reversing hydrostatic motors #60 HS endless roller chain & sprockets in sealed chaincase with oil lubrication 38.14:1 1.75 (44,5) (6) 9/16”
CAPACITIES Cooling System . . . . . . . . . . . . . . . . . . . . . Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Oil W/Filter . . . . . . . . . . . . . . . . . . Hydraulic Reservoir . . . . . . . . . . . . . . . . . . Hydraulic/Hydrostatic System . . . . . . . . . Chaincase Reservoir . . . . . . . . . . . . . . . . TIRES Flotation . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Pressure . . . . . . . . . . .
9 qts. (8,5 L) 10 gals. (38 L) 4 qts. (4 L) 2.3 gals. (8,7 L) 4.8 gals. (18,2 L) 4 gals. (15 L) 27 x 8.50–15, 4 or 6 ply rating Inflate tires to MAXIMUM pressure shown on the side wall of the tire. DO NOT mix brands of tires used on the same loader.
FLOOR PRESSURE Flot. Tires–Rated Load . . . . . . . . . . . . . . . . Unloaded . . . . . . . . . . . . . . . . . . . . . . . . . .
90 of 96
Front 28 PSI (193 kPa) 20 PSI (138 kPa)
–72–
Rear 23 PSI (159 kPa) 27 PSI (186 kPa)
553 Bobcat Loader Operation & Maintenance Manual
Dealer Copy -- Not for Resale
HYDRAULIC SYSTEM Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pump Capacity . . . . . . . . . . . . . . . . . . . . . System Relief at Quick Coupler . . . . . . . Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Cylinders . . . . . . . . . . . . . . . . . . Bore Diameter: Lift Cylinder (2) . . . . . . . . . . . . . . . . . . . . Tilt Cylinder (1) . . . . . . . . . . . . . . . . . . . . Rod Diameter: Lift Cylinder (2) . . . . . . . . . . . . . . . . . . . . Tilt Cylinder (1) . . . . . . . . . . . . . . . . . . . . Stroke: Lift Cylinder (2) . . . . . . . . . . . . . . . . . . . . Tilt Cylinder (1) . . . . . . . . . . . . . . . . . . . . Control Valve . . . . . . . . . . . . . . . . . . . . . . .
