Milton CAT 259B User Manual

247B/257B Series 3

Multi Terrain Loaders

259B Series 3

Compact Track Loaders

247B Series 3 257B Series 3 259B Series 3

Engine

Engine Model Cat C2.2 T Cat C3.4 DIT Cat C3.4 DIT
Net Power (SAE 1349/ISO 9249) 42 kW (56 hp) 53 kW (71 hp) 53 kW (71 hp)

Weights

Operating Weight 3174 kg (6,997 lb) 3656 kg (8,060 lb) 4052 kg (8,934 lb)

Operating Specications

Rated Operating Capacity at 50% Tipping Load 975 kg (2,150 lb) 1213 kg (2,675 lb) 1338 kg (2,950 lb)

Features

Comfortable Operator Station

Spacious, comfortable cab and ergonomic, low
effort joystick controls reduce operator fatigue.

Suspended Undercarriage

Suspended undercarriages on the Cat Compact
Track Loaders and Multi Terrain Loaders absorb
shocks and vibrations from uneven terrain while
allowing higher operating speeds, better material
retention and increased operator comfort.

High Performance Power Train

High horsepower and torque deliver outstanding
performance.

Advanced Hydraulic System

Hydraulic system provides maximum power and
reliability for demanding applications.

More Work Tools

Caterpillar’s broad range of performance matched
work tools make the Cat Compact Track Loader
and Multi Terrain Loader the most versatile
machines on the jobsite.

Contents

Operator Station ..................................................3

Undercarriage .....................................................4

Power Train ..........................................................5

Lift Linkages .........................................................5

Hydraulics ............................................................6

Work Tools ............................................................7

Serviceability .......................................................8

Customer Support ...............................................8

Speci cations ......................................................9

Standard Equipment .........................................14

Optional Equipment...........................................15

The Cat B-Series 3 Compact Track Loaders and
MultiTerrain Loaders feature suspended undercarriages
for lower ground pressures and superior traction.
Spacious, ergonomic operator station and easy-to-use
pilot operated joystick controls keep you comfortable
throughout the work day. High performance power train,
advanced hydraulic system, traditional Cat reliability
and a wide range of Cat Work Tools improve your
productivity in the toughest working conditions.

Operator Station

Superior comfort to keep you productive throughout the work day.

All Day Comfort

Comfort and ease of operation have been designed into
every aspect of the operator station. The wide, spacious
interior and uncluttered oor provide a comfortable work
environment with excellent head, shoulder and leg room
to keep productivity high and fatigue low. The adjustable
seat and low effort controls keep the operator comfortable
throughout the work day.

Low Effort Joystick Controls

Ergonomic, pilot hydraulic controls deliver precise control
with minimal effort. The right joystick controls the loader
raise, lower and tilt functions while the left joystick controls
the forward and reverse travel speed plus direction. Optional
deluxe joysticks provide additional auxiliary controls with
ngertip control of many work tool functions, including
proportional work tool hydraulics and work tool electrical.
Basic and deluxe joystick functions include one-touch
continuous auxiliary hydraulic ow and momentary auxiliary
hydraulic  ow.

Excellent Visibility

The wide cab opening offers an exceptional view to the work
tool. The sloped angle of the engine compartment allows
excellent visibility to the rear of the machine. The standard
rear view mirror gives the operator a panoramic view of the
machine’s rear and sides. The side windows remove easily
forcleaning.

Additional Features for Maximum Comfort

The B-Series 3 machines offer the following additional
features to help you on the job:

• Suspension seat option for even greater operator comfort.

• Easy to read instrument panels.

• Optional air conditioner and heater for greater comfort
in extreme conditions.

• Standard oor mat with footrest provides non-slip
surface and can be removed for easy cleaning.

• Ergonomic, contoured and padded armbar provides
comfortable operation.

3

Undercarriage

Choice of undercarriage to meet your speci c needs.

Multi Terrain Loader Undercarriage

The Cat 247B Series 3 and 257B Series 3 Multi Terrain
Loaders feature a fully suspended, rugged, durable rubber
track that is lightweight and pliable, yet reinforced with high
tensile strength cords. The undercarriage provides extremely
low ground pressure, allowing these machines to operate
over sensitive surfaces and in soft underfoot conditions.
Theindependently suspended undercarriage distributes the
load and greatly reduces shock and vibration throughout
the machine for a comfortable ride and excellent bucket
loadretention. The undercarriage also features:

• Heavy duty torsion axles that independently suspend
each side of the machine frame for a smoother ride over
rough terrain, even at high speeds.

• Components that are replaceable as individual wear
items, reducing owning and operating costs.

• Low ground pressure: 27.3 kPa (4.0 psi) for the
247BSeries 3 and 31 kPa (4.5 psi) for the 257B Series 3.

Compact Track Loader Undercarriage

The Cat 259B Series 3 Compact Track Loader features a
fully suspended, steel embedded rubber track undercarriage
for versatility, durability and comfort. Heavy-duty torsion
axles suspend the undercarriage and can move independently
relative to the machine and each other. These axles absorb
most of the shock to the machine and operator, especially
over rough terrain. This means smooth travel, even at
high speeds, as well as better load retention and greater
productivity. The undercarriage also features:

• Steel embedded rubber track that provides excellent
durability in a wide variety of applications.

• Steel rollers with metal face seals for long-term
durability and reliability in even the toughest conditions.

• Simple recoil grease tensioning system for quick track
tension adjustment.

• Two track options – standard track width of 320 mm
(12.6 in) or optional 400 mm (15.7 in) track.

• Low ground pressure: 41.2 kPa (6.0 psi) with the
standard track and 34.4 kPa (5.0 psi) with optional
400mm (15.7 in) track.

4

Power Train

Aggressive performance with fuel ef ciency.

Cat Engine

The high performance power train provides high engine horsepower and
torque. The B-Series 3 machines feature rugged, reliable Cat engines that
meetU.S.EPATier 4 Interim and EU Stage IIIA emissions requirements.

Hand and Foot Throttles

Hand and foot throttles allow the operator to match engine speed to the task.
The hand throttle is ideal for jobs requiring constant engine speed such as cold
planing, trenching or snow blowing. The foot throttle lets the operator vary engine
speed and minimize fuel consumption for other tasks such as load and carry, truck
loading, grading and dozing.

Anti-Stall Feature

The anti-stall system maximizes machine power at all times by matching the engine
torque with the operational requirements of the hystat and implement systems.
This load sensing feature prevents the engine from stalling even during part
throttle operation, keeping productivity high and fuel consumption low.

Two Speed

Two speed is available as standard equipment on the 259B Series 3 Compact Track
Loader and as an option on the 257B Series 3 Multi Terrain Loader to improve
cycle times and get the job done faster.

Lift
Linkages

Built for tough jobs.

Choice of Lift Designs

Two types of lifting arrangements
are available – vertical lift (path #1
above) and radial lift (path #2) – to
meet your specic application needs.

Vertical Lift

The 257B Series 3 and 259B Series3
feature the vertical lift design which
provides extended reach and lift
height for quick and easy truck
loading and material placement.
The lift height is 3069mm (121 in)
on the 257B Series 3 and 3046 mm
(120 in) onthe 259B Series 3.

Radial Lift

The 247B Series 3, with its radial
lift design, delivers excellent
digging performance with superior
mid-lift reach.