Milton CAT 938K User Manual

924K, 930K, 938K

Wheel Loaders

924K 930K 938K

®

Engine Model* Cat
Maximum Gross Power:

ISO 14396 109 kW (146 hp) 119 kW (160 hp) 129 kW (173 hp)
ISO 14396 (DIN) 109 kW (148 hp) 119 kW (162 hp) 129 kW (175 hp)

Bucket Capacity 1.9-5.0 m
Full Turn Tip Load 7419 kg (16,352 lb) 8369 kg (18,444 lb) 9527 kg (20,997 lb)
Operating Weight 12 868 kg (28,360 lb) 13 829 kg (30,479 lb) 15 928 kg (35,104 lb)

*Engine meets U.S. EPA Tier 4 Interim/EU Stage IIIB emission standards.

C6.6 ACERT™ Cat® C6.6 ACERT™ Cat® C6.6 ACERT™

3

(2.5-6.5 yd3) 2.1-5.0 m3 (2.7-6.5 yd3) 2.5-5.0 m3 (3.3-6.5 yd3)

Experience the Difference.

Optimized Parallel Lift Z-bar Linkage

Combines the digging ef ciency of a traditional
Z-bar with tool carrier capabilities for superior
performance and  exibility.

Cab and Controls

Large, spacious cab features excellent visibility
tothe front and rear, extremely low sound levels
and low-effort ergonomic joystick controls so you
can concentrate on your work. In cab adjustments
are easy with intuitive controls and an easy to
read optional display.

Intelligent Power Management

A smooth, step-less electronically controlled
hydrostatic transmission provides adjustable
power to the ground and superb groundspeed
control for fast digging cycles and the  exibility
toef ciently perform a multitude of tasks.

Powerful Predictable Hydraulics

The system senses demand and adjusts  ow
and pressure to match. Working with buckets,
forks and other work tools has never been
moreef cient.

Work Tools

A new line of optimized Performance Series
buckets, pallet and construction forks as well as a
wide range of work tools are available in a Pin-on,
Fusion™ coupler or ISO 23727 coupler interface.

Serviceability

Daily service points are easily accessible from
ground level. Extended service intervals and
excellent service access make daily checks quick
and easy, allowing you to get to work sooner.

Contents

Parallel Lift Loader Linkage ...............................4

Industry Leading Operator Station ...................5

Power Train ..........................................................6

Hydraulics ............................................................7

Work Tools ............................................................8

Options ..................................................................9

Serviceability and Customer Support ............10

Wheel Loader Specications .........................11

Bucket Specications ......................................18

Operating Specications .................................27

Supplemental Specications ..........................33

Standard Equipment .........................................34

Optional Equipment...........................................35

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The Cat® 924K, 930K and 938K Wheel Loaders set a new standard for productivity, fuel efciency

andcomfort. Extremely low sound levels, large spacious cab and intuitive controls keep you working
comfortably all day long. The new optimized Z-bar loader linkage delivers the performance and breakout
forces of a traditional Z-bar linkage with the parallelism and load handling capability of a tool carrier.
Experience the new industry benchmark.

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Parallel Lift Loader Linkage

Optimized Z-bar linkage delivers enhanced
visibility with maximum productivity.

Optimized Z-bar Linkage

The new optimized patent-pending Z-bar linkage combines
the digging efciency of a traditional Z-bar with tool carrier
capabilities for great performance and versatility.

• Parallel lift and high tilt forces throughout the working
rangehelp you safely and condently handle loads
withprecise control.

• Linkage features excellent visibility to the bucket cutting
edge and fork tips.

• High Lift versions are also available on all three models.

4

Industry Leading Operator Station

Superior visibility, ergonomics and comfort.

Best Seat on the Job Site

Enjoy all day comfort in the spacious new K Series cab:

• Extremely low sound levels.

• Superior visibility to the work tool due to wide curved windshield, redesigned Z-bar linkage,
linesrouting and work tool design.

• Automatic climate control.

• A heated and ventilated seat option is available for added comfort in a wide range of climates.

• Seat-mounted, ergonomic joystick for lift and tilt functions. Joystick includes integrated Forward/Neutral/
Reverse switch, differential lock trigger and optional third and fourth function auxiliary hydraulics.

• Easy access to the cab with ergonomically placed grab rails, walk-up steps and large platform.

Easy to Use Instrument Panel and Display

An optional* secondary display provides easy access to vital machine parameters and works in
conjunction with the standard soft touch panel to allow real time adjustments.

• Machine information and diagnostics at a glance.

• Real time and historic fuel usage.

• Backup camera display.

• Help button plus 22 language capability.

• Adjustment of functions such as creep, third function ow, throttle and rimpull.

*Standard feature in Europe.

5

Power Train

Maximum machine power, reduced fuel consumption.

Intelligent Power Management

The Caterpillar exclusive Intelligent Power Management system actively monitors operator input and power availability to keep the
machine working at peak efciency.

Engine

The Cat® C6.6 ACERT™ engine provides cleaner, quieter operation while delivering superior performance and durability. The engine
meets U.S. EPA Tier 4 Interim and EU Stage IIIB emission requirements. Maximum engine speed is now 1,800 rpm for reduced fuel
consumption and lower sound levels. The engine also features:

• Passive regeneration system – designed to manage itself so you don’t have to.

• Diesel particulate lter that is matched to the anticipated engine overhaul life.

• Class-leading fuel efciency, signicantly reducing owning and operating costs.

• Congurable auto idle shut down feature as standard equipment.

Transmission

A smooth, step-less electronically controlled hydrostatic transmission provides adjustable power to the ground and superb
groundspeed control for a multitude of tasks.

• Four speed ranges ensure maximum controllability for any task.

• Rimpull control enables you to match available tractive power to underfoot conditions, helping reduce tire wear.

• Creeper control lets you adjust machine groundspeed when using work tools such as brooms, snow blowers and brushcutters.

• Throttle lock feature allows you to maintain constant engine RPM regardless of machine speed.

Axles and Brakes

Fully locking front differential axles are standard and can be engaged at full torque on the go with a button on the joystick. Limited slip
differentials are optional on the rear. Brake system includes independent service brakes on front and rear axles and a spring applied,
electronically activated park brake.

6

Hydraulics

Smooth, efcient operation helps you get the job done faster.

Load-Sensing Hydraulic System

K Series machines feature a new electro-hydraulic control system that is governed by the Intelligent Power Management
system. The load-sensing, variable ow system senses work demand and adjusts ow and pressure to match. This allows full
hydraulic forces at any engine speed.

• Programmable in-cab kick-outs are easy to set on the go for tilt, lower and lift. This feature is ideal forapplications where the
work cycle is repeatable.

• Caterpillar exclusive electro-hydraulic snubbing at programmed kickouts and rack/dump stops greatly improves operator
comfort and component life in addition to improved material retention.

• Adjustable third function ow through the secondary display (when equipped) for use with hydro-mechanical work tools.

• Optional Ride Control System provides an even smoother ride and excellent material retention.

• Designed with dedicated pumps for steering and implements so there is no compromise in cycle times and efciency
formulti-function operation.

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Work Tools

Do more jobs with one machine.

The Right Tool for the Job

An extensive range of work tools and bucket styles are available to make
your Cat Wheel Loader one of the most versatile machines on the job site.

Performance Series Buckets

Performance Series Buckets utilize a system-based approach to balance
bucket shape with the machine’s linkage, weight, lift and tilt capacities.
They deliver higher ll factors and better material retention for signicant
productivity and fuel efciency improvements. The buckets feature a longer
oor, open throat and curved side bars.

Additional Buckets

• Light Material • High Dump

• Multi Purpose • Wood Chip

• Sand and Gravel

Material Handling Work Tools

• Pallet Forks • Material Handling Arm

• Construction Forks

Work Tools for Special Applications

• Dozer Blades • Pipe and Pole Forks

• Snow Plows • Side Dump Buckets

• Brooms • Grapple Buckets

• Rakes • Grading Buckets

• Log and Lumber Forks

Couplers

The Cat Fusion™ interface provides coupler exibility without compromise
in breakout force and dump clearance. The advanced wedging mechanism
creates a tight, rattle-free t, eliminating play and wear for long service life.
The open coupler frame design provides excellent line of sight to the work
tool. An ISO 23727 coupler interface is also available for use with competitive
work tools.

8

Options

Customize your machine to meet your needs.

Congure the Machine the Way You Want It

A variety of options are available on the Cat K Series Wheel Loaders to suit your specic application needs. See your Cat dealer for
more information about the features below and additional options.

Coupler Options High Lift Linkage Counterweight Options HID Lights Turbine Precleaner

Rear Camera in Grill* Front Light Guards Rear Light Guards Windshield Guard Flexport™ Tires

3rd and 4th Function

Hydraulics

Cold Start Package Blue Angel Certi cation Electric Mirror Adjustment/

Heated Mirrors*

Product Link

Additional options include:

• Power Train Side Guards • Lower Power Train Guard

• Driveshaft Guard • Crankcase Guard

• Rear Waste Gate • Full Coverage Fenders

• RESPA Cab Filtration • Optional Toolbox

*Standard equipment in Europe.

9

Serviceability

Easy service to keep your machine working.

All service points are accessible from ground level. Three large
service doors can be opened and closed in any order to give full
access to lters and service points. Extended service intervals
reduce service time and maximize uptime. Additional service
features include:

• Diesel particulate lter that is matched for anticipated
engineoverhaul life. Passive regeneration system requires
nooperator interaction.

• Caterpillar exclusive electric fuel priming pump.

• Jump start studs as standard equipment.

• Single plane cooling system with 6 ns per inch coolers
asstandard.

• Swing-up air conditioner condenser for easy clean out.

• Product Link ready (standard).

Customer Support

Unmatched support makes the difference.

Renowned Cat Dealer Support

Your Cat dealer is ready to help you every step of the way. From new
or used machine sales, to rental or rebuild options, your Cat dealer
can provide an optimal solution to your business needs. Unsurpassed
worldwide parts availability, trained technicians and customer
support agreements maximize your machine uptime.

10

924K, 930K, 938K Wheel Loader Specications

Engine

924K 930K 938K

®

Engine Model Cat

Maximum Gross Power

ISO 14396 109 kW 146 hp 119 kW 160 hp 129 kW 173 hp

ISO 14396 (DIN) 109 kW 148 hp 119 kW 162 hp 129 kW 175 hp

Rated Net Power @ 1,800 rpm

SAE J1349 105 kW 141 hp 115 kW 154 hp 126 kW 169 hp

ISO 9249 (1977)/EEC 80/1269 106 kW 142 hp 116 kW 156 hp 127 kW 170 hp

ISO 9249 (DIN) 106 kW 144 hp 116 kW 158 hp 127 kW 173 hp

Maximum Gross Torque

ISO 14396 725 N·m 534 lbf-ft 775 N·m 571 lbf-ft 825 N·m 608 lbf-ft

Maximum Net Torque

SAE J1349 699 N·m 515 lbf-ft 748 N·m 551 lbf-ft 802 N·m 591 lbf-ft

ISO 9249 (1977)/EEC 80/1269 706 N·m 520 lbf-ft 756 N·m 557 lbf-ft 811 N·m 598 lbf-ft

Displacement 6.6 L 402 in

Bore 105 mm 4 in 105 mm 4 in 105 mm 4 in

Stroke 127 mm 5 in 127 mm 5 in 127 mm 5 in

• Net power ratings are tested at the reference conditions for the speci ed standard.

• Net power shown is the power available at the ywheel when the engine is equipped with alternator, air cleaner, diesel exhaust  lter,
andfanat minimum speed.

• No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.

• Flywheel per the SAE reference conditions when the fan is at maximum speed.

• Cat C6.6 engine meets U.S. EPA Tier 4 Interim (EU Stage IIIB) emission requirements.

• K Series Small Wheel Loaders have a passive regeneration system with a long life Diesel Particulate Filter.

C6.6 ACERT™ Cat® C6.6 ACERT™ Cat® C6.6 ACERT™

3

6.6 L 402 in

3

6.6 L 402 in

3

Engine Power and Torque

924K 930K 938K

lbf-ft N·m kW hp

600

800

700

500

600

400

500

300

400

800 1,000 1,200 1,400 1,600 1,800 rpm

Torque
Power

140

120

100

80

60

40

lbf-ft N·m kW hp

600

160

120

80

800

700

500

600

400

500

300

400

800 1,000 1,200 1,400 1,600 1,800 rpm

Torque
Power

140

120

100

80

60

40

lbf-ft N·m kW hp

600

160

500

120

400

80

300

800

700

600

500

400

800 1,000 1,200 1,400 1,600 1,800 rpm

Torq ue
Power

140

120

160

100

120

80

60

80

40

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