Milton CAT 12M - Manual (Page 19)

19 12M Motor Grader specifications
Std – Fan speed – max 1,450 rpm
Std – Fan speed – min 600 rpm
Std – Ambient Capability 43° C 109° F
Hi Ambient – Fan speed – max 1,650 rpm
Hi Ambient – Fan speed – min 600 rpm
Hi Ambient Capability 50° C 122° F
• Max torque (VHP Plus) measured at 1,400 rpm.
• Net power is tested per ISO 9249, SAE J1349, and EEC 80/1269
Standards in effect at the time of manufacture.
• VHP Plus is an optional attachment.
• Net power advertised is the power available at rated speed
of 2,000 rpm, measured at the flywheel when engine is
equipped with fan running at minimum speed, air cleaner,
muffler and alternator.
• No engine derating required up to 3505 m (11,500 ft).
Engine
Engine Model Cat ® C6.6 ACERT™ VHP
Base Power (1st gear) – Net 118 kW 158 hp
VHP range – Net 118-129 kW 158-173 hp
VHP Plus range – Net 118-144 kW 158-193 hp
Displacement 6.6 L 403 in 3
Bore 105 mm 4.13 in
Stroke 125 mm 4.92 in
Torque Rise (VHP Plus) 40%
Max Torque (VHP Plus) 963 N·m 710 lb ft
Speed @ rated power 2,000 rpm
Number of cylinders 6
Derating altitude 3505 m 11,500 ft
12M Net Power
VHP VHP Plus
Gear kW (hp) – Net kW (hp) – Net
Fwd. 1st 118 (158) 118 (158)
2nd 121 (163) 121 (163)
3rd 125 (168) 125 (168)
4th 129 (173) 129 (173)
5th 129 (173) 132 (178)
6th 129 (173) 136 (183)
7th 129 (173) 139 (188)
8th 129 (173) 144 (193)
Rev. 1st 118 (158) 118 (158)
2nd 121 (163) 121 (163)
3rd – 6th 125 (168) 125 (168)
Power Train
Forward/Reverse Gears 8 Fwd/6 Rev
Transmission Direct drive, power
shift, countershaft
Brakes – Service Multiple oil-disc
Brakes – Service, surface area 23 000 cm 2 3,565 in 2
Brakes – Parking Multiple oil disc
Brakes – Secondary Dual circuit control system
Hydraulic System
Circuit type Electro-hydraulic
closed center, load sensing
Pump type Variable piston
Pump output 193 L/min 51 gal/min
Maximum system pressure 24 100 kPa 3,500 psi
Standby Pressure 3100 kPa 450 psi
• Pump output measured at 2,150 rpm