Bobcat T66 Track Loader Maintenance Data

The Bobcat T66 compact track loader driveline system components: a 146.5 cu.in (2.4L) Bobcat Doosan D24 4-cylinder turbo diesel engine with a rated power of 74 hp (55.2 kW), and 1-speed or 2-speed hydrostatic transmission. The hydraulic system has a pump with a rated flow of 17.6 gpm (66.5 lpm). The system pressure is 3550 psi (245 bar). The Bobcat T66 is equipped with a vertical-lift loader boom, solid-mounted or torsion suspension undercarriage, and rubber tracks. The loader has a max lift height of 120" (3050 mm) to hinge pin and dump height of 94.3" (2395 mm). The rated operating capacity is 2450 lbs (1110 kg), and tipping load is 7000 lbs (3175 kg).

Refill Capacities

Engine Oil Capacity, gal (L) ...................... 2.4 (9.2)
Engine Coolant Capacity, gal (L) ...................... 3.0 (11.3)
Hydraulic Reservoir Fluid Capacity, gal (L) ...................... 5.0 (18.9)
Hydraulic System Fluid Capacity, gal (L) ...................... 9.5 (36.0)
Drive Motor Oil Capacity, qts (L) ...................... 0.53 (0.50)

Recommended Oil and Fluid

Engine Oil Type ...................... SAE 10W-30, 15W-40, 5W-40. API Service Category CH-4 or higher
Engine Coolant Type ...................... Bobcat PG Coolant or Bobcat EG Coolant
Hydraulic Fluid Type ...................... Bobcat All-Season Hydraulic Fluid, Synthetic Fluid
Drive Motor Oil Type ...................... Bobcat Synthetic Drive Motor Oil

Service Intervals

Lubricate Cylinder Pivot Points ...................... Every 50 Hours
Check Hydraulic Fluid Level ...................... Every 50 Hours
Check Tracks Tension ...................... Every 50 Hours
Check Track Sprocket Bolts Torque ...................... Every 50 Hours
Check Battery Connections ...................... Every 100 Hours
Check Alternator Belt Tension ...................... Every 250 Hours
Check Drive Belt ...................... Every 250 Hours
Change Engine Oil ...................... Every 500 Hours
Replace Engine Oil Filter ...................... Every 500 Hours
Replace Fuel Filter Element ...................... Every 500 Hours
Clean Cab Air Filters ...................... Every 500 Hours
Replace Hydraulic Reservoir Breather Cap ...................... Every 500 Hours
Hydraulic Charge Filter ...................... Every 500 Hours
Replace Primary Air Filter ...................... Every 1000 Hours
Replace Secondary Air Filter ...................... Every 1000 Hours
Replace Hydraulic Filter Element ...................... Every 1000 Hours
Change Hydraulic Reservoir Fluid ...................... Every 1000 Hours
Replace Cab Air Filters ...................... Every 1000 Hours
Change Final Drive Oil ...................... Every 1000 Hours
Change Engine Coolant ...................... Every 1500 Hours

Replacement Parts

Engine Oil Filter. Part Number ...................... 7343102
Engine Fuel Filter. Part Number ...................... 7336334
Primary Engine Air Filter. Part Number ...................... 7386225
Secondary Engine Air Filter. Part Number ...................... 7386224
Hydraulic Oil Filter. Part Number ...................... 7414582
Hydraulic Charge Filter. Part Number ...................... 7319444
Hydraulic Reservoir Breather Cap. Part Number ...................... 7025626
Cab Air Filter. Part Number ...................... 7176099

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BOBCAT SKID STEER AND COMPACT TRACK LOADERS

S100