336 Excavator

  • Specs Summary
  • Net Power – SAE J1349
  • Net Power - SAE J1349
    93 hp (69 kW)
  • Dig Depth – Standard
  • Dig Depth - Standard
    14.3 ft (4360 mm)

420F2/420F2 IT Backhoe Loader

Experience the Backhoe Loader designed around customer feedback. The Cat 420F2 Backhoe Loader puts all the machine controls at the operator’s fingertips. Operate all auxiliary controls with thumb rollers. Move from job site to job site quickly and smoothly with the additional 6th gear on the autoshift transmission and optional lock-up torque converter.

Operator Station

Unmatched Comfort

The ergonomic, automotive style operator station helps you work comfortably and productively all day long. Choose the configuration that meets your needs – Canopy, Cab Deluxe or Cab Deluxe with Air Conditioning. Other features include:

  • Adjustable air suspension seat
  • Tilt and telescoping steering column
  • Excellent visibility over hood and up to bucket dump
  • Pantograph windshield wiper
  • Large front windshield screen
  • Large LCD gauge cluster screen
  • Ample legroom
  • Optional heated seat
  • Differential lock button on loader lever
  • Large opening windows
  • Solid roof cab
  • LED brake lights
  • Heated seat (optional)

Ride Control

The optional Ride Control System smoothes the ride in all conditions, including load and carry, highway roading or simply moving around the job site. The result can be increased operator comfort, potentially reducing operator fatigue, and improved material retention.

Pattern Selector

The pattern selector switch, located in the cab, lets you change from an excavator to a backhoe control pattern simply by pressing a button. This lets you use the pattern you are most comfortable with so you can be more productive.

Premium Gauge Cluster

Bright and large LCD screen makes it easy to monitor machine operation and settings. LED indicator lights and audible alarms allow the machine to clearly communicate with the operator.

Safety Getting in and out of the Cab

New longer grab handles and ergonomic step placement makes it easy to maintain three points of contact when getting in and out of the cab.

Joystick Controls

Cat Backhoe Loader joysticks are economically designed to provide precise control with low effort. Loader control levers on both the Single Tilt and Integrated Toolcarrier models offer a thumb roller for any 3rd function auxiliary. The differential lock control is newly located on the loader control to bring controllability to the operator’s fingertips. New on the IT model is the forward, neutral, reverse control switch.

Power Train

Cat Engine

The Cat C4.4 ACERT engine operates quietly while delivering performance and durability. The engine meets U.S. EPA Tier 4 Final emission standards. Engine features includes:

  • Selective catalytic reduction
  • Diesel oxidation catalyst
  • Diesel exhaust fluid with system purge
  • Limited operator interaction

Transmission

The standard power shuttle transmission provides four speeds forward and reverse. Hydraulically shifted clutches allow on-the-go direction and travel speed shifts. The optional auto-shift transmission matches gear with grade and load conditions. Now with six forward and reverse speeds, the machine can reach top speeds smoothly and quickly.

  • The new optional lock-up torque converter, offered on the autoshift transmission, improves fuel efficiency up to 20% over the standard six gear autoshift. The lock-up torque converter also improves roading for long distances and with uphill climbs.
  • Hydraulic proportional control valves deliver smooth speed and directional shifts.
  • Four Wheel Drive option improves mobility and loader performance in poor underfoot conditions and can be activated on-the-go.
  • Maximum roading speed of 40 km/h (25 mph) improves travel time between job sites.

Brake Mode Selector

Brake mode selector switch has three positions: two wheel drive, two wheel drive with all wheel braking and four wheel drive. Two wheel drive with all wheel braking provides better tire life while roading and engages the front axle when brakes are applied for improved braking performance. Brake mode selector is included in the 4WD package.

Advanced Hydraulics

Load Sensing Hydraulics

Closed center hydraulic system matches pressure and flow to application demand. Whether you’re in full trenching mode or digging around delicate services, you remain in control. In applications such as production trenching where speed is important, the system will provide the flow needed to get the job done quickly and efficiently. The load sensing hydraulic system provides:

  • Better fuel efficiency
  • Electronically controlled
  • Quieter operation
  • Reduced component wear
  • Cooler hydraulic temperatures
  • Full forces at any engine speed

Flow Sharing Valves

Specifically tuned hydraulic valves allows for the multifunction of hydraulic components, without machine manipulation. Hydraulic fluid is shared between implements so that operation isn’t interrupted.

Hydraulic Lines

Combination two way and one way flow hydraulic lines add versatility to the machine. By simply changing the lever position, the machine can efficiently run either style hydro mechanical tool.

Economy Mode

Cat Backhoe Loaders are able to reduce engine speed to 1,900 rpm while maintaining superior hydraulic power and performance.

Backhoe Performance

Boom

The excavator-style boom is built for optimum performance and durability. The curved design provides added clearance when digging over obstacles or loading trucks. The narrow boom enhances the viewing area to the bucket and the trench throughout the operating range. More robust swing casting and double clevis design improves durability and reliability.

Stick

Serrated edges on the stick provide improved material clamping for clearing and demolition applications. The optional extendible stick (E-stick) increases reach and dig depth by approximately 1.2 m (4 ft).

Programmable Auxiliary Flow Control

  • Three auxiliary settings for two auxiliary functions
  • Accessed through the gauge cluster, operators can match the hydraulic flow of the machine to a work tool attachment

Thumbs

Thumb mounting provisions are standard on every Cat Backhoe Loader for added machine versatility. Cat hydraulic thumbs are available for even greater versatility. Mechanical thumbs are also available through your Cat dealer.

Loader Performance

Front loader arms deliver more reach, dump height and breakout. Choose the loader linkage that suits your application:

Powerful Single Tilt Loader Linkage

  • Delivers strong lift and breakout forces for a solid performance in backfilling and truck loading applications with pin-on buckets.
  • Optional third function hydraulics are now operated by an ergonomically designed thumb roller.
  • The operator can now engage the differential lock with a press of a button on the loader lever for added machine control.

Integrated Toolcarrier (IT) loader linkage (optional) provides high breakout forces with parallel lift for efficient loading and material handling:

  • The versatile integrated toolcarrier comes with a standard hydraulic quick coupler and can use a wide range of Cat Work Tools for a variety of applications.
  • The single lever IT loader control provides fine modulation of hydraulic work tools. A thumb roller operates auxiliary hydraulic functions on work tools such as multi purpose buckets, brooms and other attachments.
  • The IT loader lever provides additional machine control by offering the Forward, Neutral and Reverse control switch at the operator’s fingertips.

Work Tools

Backhoe Work Tools

Increase the versatility of your machine with the large selection of backhoe attachments:

  • Buckets – Standard Duty, Heavy Duty, Heavy Duty Rock, Soil Excavation, Coral and Ditch Cleaning
  • Cold Planers
  • Hammers
  • Augers
  • Rippers
  • Thumbs (mechanical and hydraulic)
  • Vibratory Plate Compactors
  • Quick Couplers

Loader Work Tools

A wide range of loader attachments is available including:

  • Buckets – General Purpose, Multi Purpose, Side Dump and Light Material
  • Angle Blades
  • Brooms
  • Rakes
  • Forks
  • Material Handling Arms
  • Snow Plows

IT Loader Quick Coupler

The quick coupler allows fast and easy connection to work tools. Mechanical work tools can be changed in less than 30 seconds from the comfort of the operator station.

Backhoe Quick Coupler

Manual or hydraulic backhoe couplers make rear tool exchange quick and easy. New Cat dual lock coupler has a self-adjusting wedge design to ensure a tight fit. It also features a safety lock that automatically engages.

Serviceability

Minimize Your Downtime

Convenient service features make maintenance easy, reducing your downtime:

  • Hinged cooling pack provides easy access
  • Tilt up hood provides easy, convenient access to all engine check points
  • Engine side panels remove easily without the use of tools
  • Cat Product Link™ system (optional) provides remote reporting of machine location and operating system parameters

Customer Support

Renowned Dealer Support

From helping you choose the right machine to knowledgeable ongoing support, Cat dealers provide the best in sales and service.

  • Preventive maintenance programs and guaranteed maintenance contracts
  • Best-in-class parts availability
  • Operator training to help boost your profits
  • Genuine Cat Remanufactured parts

Engine

  • Engine Model (Standard) Cat® C4.4 ACERT™
  • Gross Power - SAE J1995 102 hp (76 kW)
  • Net Power - ISO 9249 100 hp (74 kW)
  • Gross Power - ISO 14396 93 hp (69 kW)
  • Net Power - EEC 80/1269 94 hp (70 kW)
  • Bore 94 in (70 mm)
  • Stroke 105 in (78 mm)
  • Displacement 106 in3 (79 L)
  • Net Peak Power @ 1,800 rpm - EEC 80/1269 106 hp (79 kW)
  • Net Peak Power @ 1,800 rpm - ISO 9249 4.13 hp (105 kW)
  • Net Peak Power @ 1,800 rpm - SAE J1349 5 hp (127 kW)
  • Net Torque Rise @ 1400 rpm - Standard 268 % (4.4 %)
  • Net Peak Torque @ 1400 rpm - Standard - SAE J1349 46%
  • Net Power - SAE J1349 93 hp (69 kW)

Backhoe

  • Dig Depth - Standard 14.3 ft (4360 mm)

Weights

  • Operating Weight - Nominal 17033 lb (7726 kg)
  • Cab, ROPS/FOPS 24251 lb (11000 kg)
  • Auto-Shift Transmission 359 lb (163 kg)
  • Ride Control 525 lb (238 kg)
  • Four Wheel Drive 31 lb (14 kg)
  • Loader, IT w/QC 93 lb (42 kg)
  • MP Bucket 1.0 m3 (1.3 yd3) w/o Fold-Over Fork 364 lb (165 kg)
  • Extendible Stick (no weights) 1642 lb (745 kg)
  • Air Conditioning 699 lb (317 kg)
  • Counterweights (Option 1) 672 lb (305 kg)
  • Counterweights (Option 2) 255 lb (115 kg)
  • Counterweights (Option 3) 530 lb (240 kg)
  • Operating Weight - Maximum 24251 lb (11000 kg)

Loader

Hydraulic System

  • Circuit Type Closed Center
  • Pump Capacity (@ 2200 rpm) Variable Flow, Axial Piston
  • System Pressure - Backhoe 43 psi (163 kPa)
  • System Pressure - Loader 3600 psi (25000 kPa)
  • Pump Type 3600 (25000 )

Power Train

  • Power-Shuttle, Forward 1st 3.4 mph (5.4 km/h)
  • Forward 2nd 5.6 mph (9 km/h)
  • Forward 3rd 13 mph (21 km/h)
  • Forward 4th 25 mph (40 km/h)
  • Power-Shuttle, Reverse 1st 3.4 mph (5.4 km/h)
  • Reverse 2nd 5.6 mph (9 km/h)
  • Reverse 3rd 13 mph (21 km/h)
  • Reverse 4th 25 mph (40 km/h)
  • Auto-Shift (opt), Forward 1st 3.6 mph (5.8 km/h)
  • Forward 2nd 5.7 mph (9.3 km/h)
  • Forward 3rd 7 mph (12 km/h)
  • Forward 4th 12 mph (19 km/h)
  • Forward 5th 16 mph (26 km/h)
  • Auto-Shift (opt), Reverse 1st 25 mph (40 km/h)
  • Reverse 2nd 3.6 mph (5.8 km/h)
  • Reverse 3rd 7.6 mph (12 km/h)

Operating Specifications - Backhoe

Axle Ratings

  • Front Axle, 2WD, Static 50582 lb (22964 kg)
  • Dynamic 20233 lb (9186 kg)
  • Front Axle, 4WD, Static 50582 lb (22964 kg)
  • Dynamic 20233 lb (9186 kg)
  • Rear Axle, Static 50582 lb (22964 kg)
  • Dynamic 20233 lb (9186 kg)

Service Refills

  • Cooling System 5.9 gal (22.5 L)
  • Fuel Tank 42 gal (160 L)
  • Engine Oil w/Filter 5 gal (19 L)
  • Transmission-Torque Converter, 2WD, Power Shuttle 2.3 gal (8.8 L)
  • Transmission-Torque Converter, 4WD, Power Shuttle 4 gal (15 L)
  • Rear Axle 4 gal (15 L)
  • Rear Axle, Planetaries 5 gal (19 L)
  • Front Axle, 4WD 4.4 gal (16.5 L)
  • Front Axle, Planetaries 0.4 gal (1.7 L)
  • Hydraulic System 2.9 gal (11 L)
  • Hydraulic Tank 0.2 gal (0.7 L)
  • Transmission-Torque Converter, 4WD, Auto Shift 25.1 gal (95 L)

Standards

Engine Ratings

Tires

Standard Equipment

Adjustable auxiliary controls, backhoe loader

Air cleaner

Alarm, back-up

Alternator, 150 amp

Audible system fault alarm

Automatic Engine Speed Control (AESC)

Battery, maintenance-free, 880 CCA

Battery disconnect switch

Battery remote jumpstart

Boom transport lock

Brace, lift cylinder

Brake, secondary parking

Brakes, hydraulically boosted, oil disc, dual pedals, interlocking

Bucket level indicator

Canopy, ROPS/FOPS

Cat cushion swing system

Coat restraint

Coolant/antifreeze, extended life

Counterweight, bumper

Dome light (cab only)

Diagnostic port for engine, machine and gauge cluster Electronic Control Modules

Differential lock, loader joystick

Engine, Cat C4.4 ACERT (Direct Injection Turbocharged), meets Tier 4 Final emission standards, selective catalyst reduction, diesel oxidation catalyst (DOC)

Engine enclosure, sound suppression removal panels

Face seals, O-ring

Fan, suction and guard

Fast reversing shuttle, all gears

Fenders, rear

Filters, spin-on: fuel, engine oil, transmission oil, water separator

Filters, bowl and cartridge: hydraulic fluid

Flashing hazards/signal lights

Floor mat

Fuel tank, fully enclosed

Fully hinged front grill for cooling package cleaning access

Gauge cluster: coolant temperature, fuel level, torque converter temperature, DEF level

Ground level fuel fill and DEF fill

High ambient cooling package

Hood lock, inside cab

Hydraulic hose, XT™

Hydraulic oil cooler

Hydraulic oil level sight gauge

Hydraulic valve, hydrostatic steering

Hydraulic valves, loader 2 function

Hydraulic valves, backhoe 5 function

Hydraulics, load sensing with variable displacement piston pump

Indicator lights: Eco mode active, water in fuel, remote dial throttle active, engine warning, warning lamp, emissions module malfunction, AESC active, low battery/charging system warning, high hydraulic oil temperature; LCD warnings: engine oil pressure, machine locked (if equipped), service due, air filter blocked, high coolant temperature, auto idle shutdown, high torque converter temperature, hydraulic filter bypass

Instrument panel lights

Joystick controls: pilot operated, excavator-style with pattern changer

Key start/stop system

LCD screen: engine speed, hour meter, gear/direction, battery voltage, hydraulic oil temperature, torque converter temperature, coolant temperature, trip totals (fuel and hours), lifetime totals (fuel and hours), operator settings (units, brightness, programmable hoe auxiliary flow), service mode diagnostics, oil life reset, DPF force regeneration, maintenance intervals, ECM/system info

Lights, working (4 front, 4 rear)

Loader, self-leveling, return-to-dig and transmission disconnect switch

Loader, single tilt

Mirror, rearview

One-touch low idle

Open circuit breather

Pattern changer, in cab

Power receptacle, 12 volt, 2 internal, 1 external

Power steering, hydrostatic

Radio ready cab

Seat belt, retractable, 51 mm (2 in)

Socket, two roof

Stabilizer shoes, street

Steering knob

Seat, air suspension, fabric or vinyl cover, with armrest

Starting system, glow plugs

Steering, hydrostatic

Storage compartment, lockable

Storage tray

Stop and tail lights

Swing transport lock

Tilt steering wheel

Tires

Toolbox, external, lockable

Torque converter

Throttle, hand and foot, electronic

Transmission, four speed, syncromesh

Transmission neutralizer switch

Transport tie-downs

Two Wheel Drive

Vandalism locks, four

Warning horn, electric

Optional Equipment

Battery, additional, 880 CCA

Cab, deluxe

Cold weather fuel (–30° C/–22° F)

Cold weather package, including additional battery, engine block heater, radiator antifreeze, cold weather fuel (–30° C/–22° F) and mounting for an ether bottle

Counterweights, 115 kg (255 lb), 240 kg (530 lb) or 460 kg (1,015 lb)

Fenders, front with integral steps

Four Wheel Drive

Guard, boom protection plate

Guard, stabilizer, rock

Hydraulic valves, loader (3rd valve for GP, MP or Quick Coupler)

Hydraulic valves, backhoe 6 function

Hydraulic lines, combined function auxiliary

Loader, IT with Quick Coupler and pilot loader control

Product Link, satellite, PL631E

Product Link, cellular, PL641I

Quick Coupler, hydraulic, dual lock

Quick Coupler, manual, dual lock

Quick Coupler, pin lock

Radio and CD player

Radio and CD player, Bluetooth

Ride Control

Rotating beacon, magnetic mount

Seat belt, 75 mm (3 in)

Seat, heated

Security system keypad

Stabilizer pads, reversible

Stick, extendible

Storage box

Transmission, AutoShift

Transmission, AutoShift with lock-up torque converter

Vandalism protection, gauge cover

Work Tool Attachments such as buckets, forks, material handling arms, augers, hammers, brooms, cold planers and vibratory plate compactors. See your Cat dealer for more information.