Bobcat S850 Skid Steer Maintenance Data

The Bobcat S850 skid steer loader is powered by 230 cu.in (3.8L) Kubota V3800 4-cylinder direct injection turbocharged diesel engine with a rated power of 92 hp (68.6 kW) at 2400 rpm. The Bobcat S850 is equipped with a two-speed hydrostatic transmission, vertical-lift loader boom, 120 HSOC roller chains, and 14x17.5 tires. The hydraulic system has a pump with fluid flow rate of 23 gpm (87.1 lpm) or 36.5 gpm (138.2 lpm). The hydraulic pressure is 3550 psi (245 bar). The skid steer has a rated operating capacity of 3950 lbs (1792 kg) and tipping load of 7900 lbs (3584 kg). The boom lifting force is 6933 lbs (3145 kg), and bucket breakout force is 6975 lbs (3164 kg).

Refill Capacities

Engine Oil Capacity, gal (L) ...................... 3.0 (11.4)
Engine Coolant Capacity, gal (L) ...................... 3.8 (14.4)
Hydraulic Reservoir Fluid Capacity, gal (L) ...................... 3.0 (11.4)
Hydraulic System Fluid Capacity, gal (L) ...................... 9.5 (36.0)
Chain Case Oil Capacity, gal (L) ...................... 10.4 (39.4)

Recommended Oil and Fluid

Engine Oil Type ...................... SAE 10W-30, 15W-40, 5W-30. API Service Category CG-4 or higher
Engine Coolant Type ...................... Bobcat PG Coolant or Bobcat EG Coolant
Hydraulic Fluid Type ...................... Bobcat All-Season Fluid, Superior SH, Bio Hydraulic
Chain Case Oil Type ...................... Bobcat All-Season Fluid, Superior SH, Bio Hydraulic

Service Intervals

Lubricate Cylinder Pivot Points ...................... Every 50 Hours
Check Hydraulic Fluid Level ...................... Every 50 Hours
Check Chain Case Oil Level ...................... Every 50 Hours
Check Battery Connections ...................... Every 100 Hours
Clean Primary Air Filter ...................... Every 100 Hours
Clean Fuel Filter ...................... Every 100 Hours
Change Engine Oil ...................... Every 250 Hours
Replace Engine Oil Filter ...................... Every 250 Hours
Replace Fuel Filter Element ...................... Every 250 Hours
Check Alternator Belt Tension ...................... Every 250 Hours
Check Drive Belt Tension ...................... Every 250 Hours
Replace Hydraulic Reservoir Breather Cap ...................... Every 500 Hours
Replace Hydraulic Charge Filter ...................... Every 500 Hours
Clean Cab Air Filters ...................... Every 500 Hours
Replace Primary Engine Air Filter ...................... Every 1000 Hours
Replace Secondary Engine Air Filter ...................... Every 1000 Hours
Replace Hydraulic Oil Filter ...................... Every 1000 Hours
Change Chain Case Oil ...................... Every 1000 Hours
Change Hydraulic Reservoir Fluid ...................... Every 1000 Hours
Replace Cab Air Filters ...................... Every 1000 Hours
Change Engine Coolant ...................... Every 2000 Hours

Replacement Parts

Engine Oil Filter. Part Number ...................... 6678233
Engine Fuel Filter. Part Number ...................... 6667352
Primary Engine Air Filter. Part Number ...................... 7286652
Secondary Engine Air Filter. Part Number ...................... 7010031
Hydraulic Oil Filter. Part Number ...................... 7012314
Hydraulic Charge Filter. Part Number ...................... 6686926 (Spin-on), 6692337 (Canister)
Hydraulic Reservoir Breather Cap. Part Number ...................... 6727475
Cab Air Filter. Part Number ...................... 7176099, 7193354
Alternator Belt. Part Number ...................... 7174706
Drive Belt. Part Number ...................... 7197894

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BOBCAT SKID STEER AND COMPACT TRACK LOADERS

S100