Engine, Propel system, Rotor drive system – Milton CAT PM 102 User Manual
Page 8: Pm-102 specifications

8
PM-102 specifications
Engine
The Caterpillar
®
3126B engine is a six
cylinder, turbocharged air-to-air
after-cooled diesel engine. The engine
meets U.S. EPA Tier 2 and European
EU Stage II engine emission
regulations.
Engine
Cat
®
3126B
Gross Power
kW
hp
SAE J1995
168
225
Net Power
kW
hp
ISO 9249
156
209
EEC 80/1269
156
209
SAE J1349
151
203
Specifications
Bore
110 mm
4.3"
Stroke
127 mm
5.0"
Displacement
7.2 liters
442 in
3
■
The power ratings apply at a rated
speed of 2200 RPM when tested
under the reference conditions for the
specific standard.
■
The net power advertised is the
power available at the flywheel when
the engine is equipped with an
alternator, air cleaner, muffler and
fan.
■
Derating is not required up to an
altitude of 3000 m (9850').
■
Cold mode starting aid, dual fuel
filters with water separator and air
compressor are standard.
Propel System
Hydrostatic drive with hydraulic flow
provided by a variable displacement
piston-type pump. Drive motors with
planetary gear reduction on each track
or wheel provides balanced tractive
effort. Machine can be equipped with
either a track or wheeled undercarriage.
Features
■
A variable displacement, piston-type
pump with electronic displacement
control supplies pressurized flow.
■
Positive traction control valve
provides equal hydraulic oil flow to
each drive motor to increase tractive
effort in hard cutting.
■
Drive motors have two swashplate
positions allowing operation at either
maximum torque throughout the
entire milling speed range or at a
faster travel speed for moving around
the job site.
■
Gear selection controlled electrically
by a two-position switch on the
operator’s console.
■
Infinitely variable machine speed and
direction of travel controlled by
propel lever and speed dial.
■
Load control system, controlled by
Electronic Control Module (ECM),
matches propel speed to load on the
engine for maximum production.
■
Track undercarriage – tracks are
720 mm (28.3") long, 225 mm (8.8")
wide and feature replaceable
polyurethane track pads.
■
Wheel undercarriage – wheels have a
diameter of 660 mm (25.9") and are
260 mm (10.2") wide.
Max. Speeds (forward and reverse):
Track undercarriage
Operating
27 mpm - 89 fpm
Travel
4.1 km/h - 2.5 mph
Wheel undercarriage
Operating
46 mpm - 151 fpm
Travel
6.4 km/h - 3.9 mph
Rotor Drive System
Operates direct through a hydraulically
actuated, dry clutch driving a planetary
gear reducer.
Features
■
Heavy-duty dry clutch mounts
directly to the engine. Hydraulically
actuated by a ON/OFF switch on the
operator’s console.
■
Mechanical dry clutch consists of
trapezoid pulleys, molded high-
strength belt and a hydraulic-coupling
dry clutch. The field-proven drive
system delivers reliability and long
service life.
■
A drive train protection device
protects rotor drive system, rotor and
tools by instantly disengaging rotor
drive whenever an abrupt drop in
rotor rpm occurs.
■
Molded six-rib high tensile strength
drive belt drives the rotor through a
drum drive gear reducer located
inside the rotor mandrel.
■
Hydraulically powered automatic
drive belt tensioner prevents rotor
drive belt slippage and reduces
maintenance.
■
Upper and lower sheaves are easily
interchangeable for maximum torque
with the toughest materials and
different material sizing
requirements.
Rotor Speed:
@ 2200 engine rpm
118 rpm