Milton CAT 938K - Manual (Page 13)

Loader Hydraulic System
• Implement system uses a dedicated load sensing variable displacement pump with dual
double acting lift cylinders and a single double acting tilt cylinder.
• 3rd function flow is fully adjustable from 20% to 100% of maximum flow through the
secondary display when equipped.
• 4th function flow is fi xed.
924K 930K 938K
Maximum flow – implement pump 150 L/min 40 gal/min 190 L/min 50 gal/min 190 L/min 50 gal/min
3rd function maximum flow 150 L/min 40 gal/min 190 L/min 50 gal/min 190 L/min 50 gal/min
4th function maximum flow 75 L/min 20 gal/min 75 L/min 20 gal/min 75 L/min 20 gal/min
Maximum working pressure – 26 000 kPa 3,771 psi 25 000 kPa 3,626 psi 28 000 kPa 4,061 psi
implement pump
Relief pressure – tilt cylinder 28 000 kPa 4,061 psi 28 000 kPa 4,061 psi 30 000 kPa 4,351 psi
3rd function maximum working pressure
3rd function relief pressure
26 000 kPa
28 000 kPa
3,771 psi
4,061 psi
25 000 kPa
28 000 kPa
3,626 psi
4,061 psi
28 000 kPa
30 000 kPa
4,061 psi
4,351 psi
4th function maximum working pressure 26 000 kPa 3,771 psi 25 000 kPa 3,626 psi 28 000 kPa 4,061 psi
4th function relief pressure 28 000 kPa 4,061 psi 28 000 kPa 4,061 psi 30 000 kPa 4,351 psi
Lift cylinder: double acting
Bore diameter 110 mm 4.3 in 120 mm 4.7 in 120 mm 4.7 in
Rod diameter 60 mm 2.4 in 65 mm 2.6 in 65 mm 2.6 in
Stroke 728 mm 28.7 in 728 mm 28.7 in 789 mm 31.1 in
Tilt cylinder: double acting
Bore diameter 130 mm 5.1 in 150 mm 5.9 in 150 mm 5.9 in
Rod diameter 70 mm 2.8 in 90 mm 3.5 in 90 mm 3.5 in
Stroke 555 mm 21.9 in 555 mm 21.9 in 555 mm 21.9 in
Hydraulic cycle times (1,800 rpm)
Raise (ground level to maximum lift) 5.5 seconds 5.1 seconds 5.5 seconds
Dump (at maximum lift height) 1.5 seconds 1.5 seconds 1.5 seconds
Float down (maximum lift to ground level) 2.6 seconds 2.7 seconds 2.7 seconds
Total cycle time 9.6 seconds 9.3 seconds 9.7 seconds
Hydraulic cycle times (1,000 rpm)
Raise (ground level to maximum lift) 9.6 seconds 9.1 seconds 9.8 seconds
Dump (at maximum lift height) 3.0 seconds 2.6 seconds 2.6 seconds
Float down (maximum lift to ground level) 2.6 seconds 2.7 seconds 2.7 seconds
Service Refi ll Capacities
924K 930K 938K
Fuel tank 195 L 51.5 gal 195 L 51.5 gal 195 L 51.5 gal
Cooling system 30 L 7.9 gal 30 L 7.9 gal 32 L 8.5 gal
Engine crankcase 20 L 5.3 gal 20 L 5.3 gal 20 L 5.3 gal
Transmission (gear box) 8.5 L 2.2 gal 8.5 L 2.2 gal 11 L 2.9 gal
Axles
Front 21 L 5.5 gal 26 L 6.9 gal 35 L 9.2 gal
Rear 21 L 5.5 gal 25 L 6.6 gal 35 L 9.2 gal
Hydraulic system (including tank) 160 L 42.3 gal 165 L 43.6 gal 170 L 44.9 gal
Hydraulic tank 90 L 23.8 gal 90 L 23.8 gal 90 L 23.8 gal
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