Detailed instructions for use are in the User's Guide.
[. . . ] So whether you're in full trenching mode, or delicately digging around services, you are in control. In applications such as production trenching, speed is important and the system will match the flow needed to get the job done quickly and efficiently. The load-sensing hydraulic system also delivers: · · · · A cooler hydraulic system Better fuel efficiency Quieter operation Reduced wear on components
Cat XT-3 ES ToughGuardTM hoses combined with Cat couplings and O-ring face seal fittings provide a leak-free system. The 420E also features new flow-sharing hydraulic valves, ensuring proportional flow of oil to all hydraulic cylinders, providing greater control and improving multifunction performance.
Ride Control
Delivers even greater operator comfort.
The optional Ride Control System smooths the ride in all conditions, including load and carry, highway roading, or simply moving around the job site. [. . . ] Four Wheel Drive (4WD) option improves mobility and loader performance in poor underfoot and can be activated on-the-go. Maximum roading speed of 40 km/h (25 mph) for faster travel between job sites. Cat Rear Axles are designed specifically for demanding backhoe loader applications. Axles feature outboard planetary gear sets for easy serviceability and brake design improvements for longer service life.
· ·
Brake Mode Selector
The 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.
5
Loader
Choice of loader linkage to meet your needs.
Caterpillar offers a choice of single tilt or integrated toolcarrier (IT) loader linkage to suit your application requirements. The IT loader controls provide single lever proportional control and fine modulation of the hydraulic work tools. A thumb roller operates auxiliary hydraulic functions such as the multi purpose bucket on the IT machines.
Single Tilt
The standard single tilt loader linkage features strong lift and breakout forces for solid performance in backfilling and truck loading applications.
Integrated Toolcarrier
The optional integrated toolcarrier (IT) loader linkage provides higher breakout forces, as well as parallel lift, for efficient loading and material handling. Integrated toolcarriers are highly versatile and can use a wide range of Cat Work Tools for a variety of applications.
Return-to-Dig
The return-to-dig system reduces loading cycle times by bringing the loader bucket back to the dig position with an easy pull of the lever. By the time the loader bucket is at ground level, the bucket is angled correctly for the next load or cut.
6
Backhoe
Boom and stick designed for high performance and easy service.
The E-Series backhoe delivers industry-leading digging forces. Serrated edges on the stick provide improved material clamping for clearing and demolition applications. The single pin bucket linkage contributes to best-in-class rotation of 205 degrees for all applications.
E-Stick Design
The optional extendible stick (E-stick) increases reach and dig depth by approximately 1. 2 meters (4 feet). · Used 35° API gravity fuel having an LHV of 42 780 kJ/kg (18, 390 BTU/lb) when used at 30° C (89° F) (reference a fuel density of 838. 9 g/L [7. 001 lb/gal]). 11
420E/CM240 Specifications
Loader
Bucket Capacity General Purpose Bucket Width General Purpose Dump Height @ Max Angle Single Tilt Dump Height @ Max Angle IT with QC Dump Reach @ Max Angle Single Tilt Dump Reach @ Max Angle IT with QC Dig Depth Single Tilt Dig Depth IT with QC Lift Capacity @ Full Height Single Tilt Lift Capacity @ Full Height IT with QC Bucket Breakout Force Single Tilt Bucket Breakout Force IT with QC 0. 96 m
3
Hydraulic System
1. 25 yd
3
Power Train
Power-Shuttle, Forward 1st Forward 2nd Forward 3rd Forward 4th Power-Shuttle, Reverse 1st Reverse 2nd Reverse 3rd Reverse 4th Auto-Shift (opt), Forward 1st Forward 2nd Forward 3rd Forward 4th Forward 5th Auto-Shift (opt), Reverse 1st Reverse 2nd Reverse 3rd 6 km/h 9. 6 km/h 20 km/h 40 km/h 6 km/h 9. 6 km/h 20 km/h 40 km/h 5. 9 km/h 9. 5 km/h 20 km/h 27 km/h 41 km/h 5. 9 km/h 13 km/h 27 km/h 3. 7 mph 5. 9 mph 12 mph 25 mph 3. 7 mph 5. 9 mph 12 mph 25 mph 3. 7 mph 5. 9 mph 12 mph 17 mph 25 mph 3. 7 mph 7. 8 mph 17 mph
Circuit Type Pump Capacity (@ 2, 200 rpm) System Pressure Backhoe System Pressure Loader Pump Type Steering Type Power Steering 2WD Cylinder Bore Stroke Rod Diameter 4WD Cylinder Bore Stroke Rod Diameter Brake System
2262 mm 2573 mm
7 ft 5 in 8 ft 5 in
Closed center, load sensing 163 L/min 43 gal/min 24 900 kPa 3, 611 psi 22 800 kPa 3, 307 psi Variable-flow, axial piston Front wheel Hydrostatic, HMU 65 mm 2. 6 in 120 mm 36 mm 65 mm 4. 7 in 1. 4 in 2. 6 in
2507 mm
8 ft 3 in
853 mm 831 mm 106 mm 147 mm 2929 kg 3164 kg 45. 6 kN 47. 1 kN
2 ft 10 in 2 ft 9 in 4 in 6 in 6, 457 lb 6, 975 lb 10, 242 lb 10, 593 lb
120 mm 4. 7 in 36 mm 1. 4 in Inboard, oil-immersed, multiple disc
· Auto-Shift automatically shifts between · Forward/reverse electric power shuttle
second gear and highest selected gear. is controlled by a conveniently placed, hand operated lever that provides instant direction changes between forward and reverse through power hydraulic clutches. · Torque converter free-wheel clutch allows the converter stator to free-wheel during high speed, low torque conditions such as roading. · Travel speeds of two wheel drive backhoe loader at full throttle when equipped with 19. 5 × 24 rear tires.
12
Operating Specifications Backhoe
Turning Circle: 8. 18 m outside, front wheels Turning Circle: 10. 97 m outside, widest loading bucket 26 ft 10 in 36 ft
Axle Ratings
Front Axle, 2WD, Static Dynamic Front Axle, 4WD, Static Dynamic Rear Axle, Static Dynamic Axle Oscillation 22 964 kg 9186 kg 22 964 kg 50, 582 lb 20, 233 lb 50, 582 lb
Tires
Choices listed as combination of front/rear tires:
· 11L-16 (12 ply) F-3/19. 5L-24 (12 ply) · 12. 5/80-18 NHS (12 ply) 1-3 Super · 12. 5/80-18 NHS (12 ply) 1-3 Super
Traction/21L-24 (16 ply) R4 ATU R4 ATU R4 ATU Traction/19. 5L-24 (12 ply) R4 ATU
· ISO 5010. Service Refills
Cooling System Fuel Tank Engine Oil w/Filter Transmission-Torque Converter, 2WD, Power Shuttle Transmission-Torque Converter, 4WD, Power Shuttle Transmission-Torque Converter, 4WD, Auto Shift Rear Axle Rear Axle, Planetaries Front Axle, 4WD Front Axle, Planetaries Hydraulic System Hydraulic Tank 20. 5 L 170 L 7. 6 L 18. 5 L 5. 4 gal 45 gal 2 gal 4. 9 gal
9186 kg 20, 233 lb 22 964 kg 50, 582 lb 9186 kg 20, 233 lb 10 Degrees
· 340/80R 18 XMCL/500/70R 24 XMCL · 340/80R 18 XMCL/19. 5L-R24 (12 ply) Brakes
Features:
· 4WD and 2WD axles are pendulum
mounted and permanently sealed and lubricated, requiring no daily maintenance. Also features double-acting steering cylinder with 52° steering angle for increased maneuverability.
· Brakes meet the following standards: · Self-adjusting, completely enclosed · Foot operated brake pedals can be
and sealed. interlocked for roading.
18. 5 L
4. 9 gal
Engine Features · Three-ring pistons made of lightweight,
silicon/aluminum alloy for strength and maximum thermal conductivity. · Forged chrome/molybdenum-steel crankshaft with crankshaft with either induction hardened or nitrocarburized journals. · Front and rear crankshaft oil seals are "lip" type Viton and PTFE designs featuring an integral dust lip. · Heat resistant, silicone-chrome steel intake and STELLITE-faced exhaust valves provide long life. [. . . ] Machine equipped with 4WD, OROPS, 0. 96 m³ (1. 25 yd³) general purpose bucket, and 116 kg (255 lb) counterweight. Extendible stick includes 488 kg (1, 075 lb) counterweight.
22
Backhoe Lift Capacity
Cat 420E/CM240 Extendible Stick Extended Boom Lifting kg 816 1 987 2 1055 3 1069 4 1061 5 1041 6 1020 7 994 8 968 9 943 10 920 11 900 12 883 13 872 14 872 15 896 16 1030 17 1555 18 Stick Lifting kg 859 19 1104 20 1443 21 1547 22 1572 23 1673 24 1899 25 2467 26 5685 27
lb 1, 800 2, 176 2, 326 2, 358 2, 340 2, 294 2, 248 2, 192 2, 135 2, 080 2, 029 1, 983 1, 946 1, 922 1, 922 1, 976 2, 272 3, 429 lb 1, 893 2, 434 3, 181 3, 410 3, 466 3, 687 4, 185 5, 438 12, 534
m
1 6 5 4 3 2 26 1 27 0 1 2 14 15 16 17 18 2 1 0 1 3 4 5
ft
20 18 16 14 12 10 8 6 4 2 0 2 4 6 8 10 12 14 16
3 4 5 6 7 8 9 10 11 12 13
2 19 20 21 22 23 24 25
m
6
5
4
3
ft 22 20 18 16 14 12 10 8 6 4 2 0 2
Lift Capacities are over-end values. Machine equipped with 4WD, OROPS, 0. 96 m³ (1. 25 yd³) general purpose bucket, and 116 kg (255 lb) counterweight. Extendible stick includes 488 kg (1, 075 lb) counterweight.
23
420E/CM240 Specifications
Counterweights
Minimum Counterweight Recommendations
Standard Stick Loader Bucket GP MP Forks Material Handling Arm Extendible Stick Loader Bucket GP MP Forks Material Handling Arm Material Handling Arm Power Train 2WD/4WD 2WD/4WD 2WD/4WD 2WD 4WD Single-Tilt kg lb 488 1, 075 231 510 N/A N/A N/A N/A N/A N/A IT Loader w/QC kg lb 231 510 no counterweight no counterweight 116 255 no counterweight Power Train 2WD/4WD 2WD/4WD 2WD/4WD 2WD/4WD Single-Tilt kg lb 231 510 no counterweight N/A N/A N/A N/A IT Loader w/QC kg lb no counterweight no counterweight no counterweight no counterweight
Backhoe Buckets
With weld on adapters and pin-on teeth
Standard Duty Width mm in 305 12 457 18 610 24 762 30 914 36 Heavy Duty Width mm in 305 12 406 16 457 18 610 24 762 30 914 36 Soil Excavation Width mm in 457 18 610 24 762 30 914 36 Heavy Duty Rock Width mm in 305 12 457 18 610 24 762 30 914 36 Coral Width mm 305 457 610 762 in 12 18 24 30 Rated Capacity L ft³ 60 2. 1 100 3. 5 140 4. 9 190 6. 7 Weight kg lb 134 295 155 341 182 402 210 463 No. [. . . ]