Small Specalog for Cat 938K Wheel Loader

Cat
®
938K
WHEEL LOADER
FEATURES:
Optimized Z-bar Linkage – The new optimized Z-bar linkage combines
the digging efficiency of a traditional Z-bar with tool carrier capabilities
for great performance and versatility. With parallel lift and high tilt
forces throughout the working range you can safely and confidently
handle loads with precise control. High Lift versions are also available.
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 or Fusion Coupler interface.
Powerful Predictable Hydraulics – The system senses demand and
adjusts flow and pressure to match. Working with buckets, forks and
other work tools has never been more efficient.
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 flexibility to efficiently perform a multitude of tasks.
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.
Serviceability – Extended service intervals and excellent service access
make daily checks quick and easy allowing you to get to work sooner.
Specifications
Engine
Engine Model
Maximum Gross Power
ISO 14396
ISO 14396 (DIN)
Rated Net Power @ 1,800 rpm
SAE J1349 at Minimum Fan Speed
SAE J1349 at Maximum Fan Speed
ISO 9249/EEC 80/1269
ISO 9249 (DIN)
Maximum Gross Torque
ISO 14396
Maximum Net Torque
SAE J1349
ISO 9249/EEC 80/1269
Bore
Stroke
Displacement
Weights
Cat® C6.6 ACERT
129 kW
129 kW
173 hp
175 hp
126 kW
116 kW
127 kW
127 kW
169 hp
155 hp
170 hp
173 hp
825 N·m
608 ft-lb
802 N·m
811 N·m
105 mm
127 mm
6.6 L
591 ft-lb
598 ft-lb
4 in
5 in
402 in3
• Engine meets EPA Tier 4 Interim/EU Stage IIIB emission standards.
• Net power shown is the power available at the flywheel when the
engine is equipped with alternator, air cleaner and diesel exhaust filter.
Buckets
Bucket Capacities – General Purpose
Bucket Capacities – Light Material
2.5-3.2 m3
3.5-5.0 m3
3.2-4.2 yd3
4.5-6.5 yd3
Operating Weight – Standard Lift
Operating Weight – High Lift
15 928 kg
16 177 kg
35,104 lb
35,653 lb
• Specifications shown are for a machine equipped with a 2.5 m3
(3.2 yd3) general purpose Fusion bucket, bolt-on cutting edge, optional
counterweights, additional guarding, 80 kg (176 lb) operator and
Michelin 20.5 R25 (L-3) XHA2 tires.
Steering
Steering Articulation Angle (each direction)
Steering Cylinder, Double-Acting:
Bore Diameter
Rod Diameter
Stroke
Maximum Flow – Steering Pump
Maximum Working Pressure –
Steering Pump
Maximum Steering Torque:
0 degrees (straight machine)
40 degrees (full turn)
Steering Cycle Times (full left to full right):
At 1,800 rpm: 90 rpm
steering wheel speed
Number of Steering Wheel Turns – full left
to full right or full right to full left
40°
80 mm
50 mm
399 mm
130 L/min
3.1 in
2.0 in
15.7 in
34 gal/min
24 130 kPa
3,500 psi
57 630 N·m
42 570 N·m
42,506 ft-lb
31,398 ft-lb
2.3 seconds
3.3 turns
938K Wheel Loader
Loader Hydraulic System
Maximum Flow – Implement Pump
3rd Function Maximum Flow*
4th Function Maximum Flow
Maximum Working Pressure –
Implement Pump
Relief Pressure – Tilt Cylinder
3rd Function Maximum Working Pressure
4th Function Maximum Working Pressure
Lift Cylinder, Double-Acting:
Bore Diameter
Rod Diameter
Stroke
Tilt Cylinder, Double-Acting:
Bore Diameter
Rod Diameter
Stroke
Hydraulic Cycle Times:
Raise (ground level to maximum lift)
Dump (at maximum lift height)
Float Down (maximum lift to ground level)
Total Cycle Time
Tires
190 L/min
190 L/min
75 L/min
50 gal/min
50 gal/min
20 gal/min
28 000 kPa
30 000 kPa
28 000 kPa
28 000 kPa
4,061 psi
4,351 psi
4,061 psi
4,061 psi
120 mm
65 mm
789 mm
4.7 in
2.6 in
31.1 in
150 mm
90 mm
555 mm
5.9 in
3.5 in
21.9 in
At 1,800 rpm
5.5 seconds
1.5 seconds
2.7 seconds
9.7 seconds
At 1,000 rpm
9.8 seconds
2.6 seconds
2.7 seconds
15.1 seconds
Standard Size
Other Choices Include:
• Other tire choices are available. Contact your Cat dealer for details.
• In certain applications, the loader’s productive capabilities may exceed
the tire’s tonnes-km/h (ton-mph) capabilities.
• Caterpillar recommends that you consult a tire supplier to evaluate all
conditions before selecting a tire model.
Cab
ROPS
FOPS
Service Refill Capacities
195 L
32 L
20 L
11 L
51.5 gal
7.9 gal
5.3 gal
2.9 gal
35 L
35 L
170 L
90 L
9.2 gal
9.2 gal
44.9 gal
23.8 gal
1-13 km/h
13 km/h
27 km/h
40 km/h
0.6-8 mph
8 mph
17 mph
25 mph
1-13 km/h
13 km/h
27 km/h
40 km/h
0.6-8 mph
8 mph
17 mph
25 mph
Operating Specifications
Tipping Load – Straight (ISO 14397-1)
Tipping Load – Full Turn (ISO 14397-1)
Clearance – Full Lift and 45 Degree Dump
Reach – Full Lift and 45 Degree Dump
Breakout Force
Steering Articulation Angle (each direction)
Transmission
Forward:
Range 1*
Range 2
Range 3
Range 4
Reverse:
Range 1*
Range 2
Range 3
Range 4
SAE J1040 MAY94,
ISO 3471-1994
SAE J/ISO 3449 APR98,
Level II, ISO 3449 1992
Level II
• Cab and Rollover Protective Structures (ROPS) are standard in
North America and Europe.
• The declared dynamic operator sound pressure levels per
ISO 6396:2008**, when properly installed and maintained, are:
– Standard cab: 68 ±3 dB(A)
– Deluxe cab: 66 ±2 dB(A)
** The measurements were conducted with the cab doors and windows
closed and at 70% of the maximum engine cooling fan speed.
The sound level may vary at different engine cooling fan speeds.
*Adjustable from 20% to 100% of maximum flow through the secondary
display, when equipped.
Fuel Tank
Cooling System
Engine Crankcase
Transmission (gearbox)
Axles:
Front
Rear
Hydraulic System (including tank)
Hydraulic Tank
20.5 R25, radial (L-3)
20.5 R25, radial (L-2)
20.5 R25, radial (L-5)
20.5-25 12PR (L-2)
20.5-25 12PR (L-3)
20.5-25 16PR (L-5)
650/65 R25 radial (L-3)
Skidder/Agriculture
Flexports Gen II
11 209 kg
9527 kg
2834 mm
1146 mm
13 170 kg
40 degrees
24,704 lb
20,997 lb
9 ft 3 in
3 ft 9 in
29,027 lb
• Specifications shown are for a machine equipped with a 2.5 m3
(3.2 yd3) general purpose Fusion bucket, bolt-on cutting edge, optional
counterweights, additional guarding, 80 kg (176 lb) operator and
Michelin 20.5 R25 (L-3) XHA2 tires.
Axles
Front
Rear
*Creeper control allows maximum speed range adjustability from 1 km/h
(0.6 mph) to 13 km/h (8 mph) in Range 1 through the secondary display,
when equipped. Factory default is 7 km/h (4.4 mph).
2
Fixed
Locking differential
(standard)
Oscillating ±11 degrees
Open differential (standard)
Limited slip differential
(optional)
938K Wheel Loader
Dimensions (All dimensions are approximate. Dimensions vary with bucket and tire choice.)
23
17
19
13
24
12
11
10
21
2
14
22
1
9
25
16
27
26
4
15
3
6
7
8
5
**
**
**
**
*
1
2
3
4
5
6
7
8
* 9
** 10
** 11
** 12
** 13
* 14
15
** 16
17
18
19
20
21
22
23
24
25
26
27
Height: Ground to Cab
Height: Ground to Beacon
Height: Ground Axle Center
Height: Ground Clearance
Length: Overall
Length: Rear Axle to Bumper
Length: Hitch to Front Axle
Length: Wheel Base
Clearance: Bucket at 45 degrees
Clearance: Loadover Height
Clearance: Level Bucket
Height: Bucket Pin
Height: Overall
Reach: Bucket at 45 degrees
Carry Height: Bucket Pin
Dig Depth
Width: Bucket
Width: Tread Center
Turning Radius: Over Bucket
Width: Over Tires
Turning Radius: Outside of Tires
Turning Radius: Inside of Tires
Rack Angle at Full Lift
Dump Angle at Full Lift
Rack Angle at Carry
Departure Angle
Articulation Angle
Operating Weight
Standard Lift
3340 mm
(10'11")
3669 mm
(12'0")
685 mm
(2'2")
386 mm
(1'3")
7656 mm
(25'1")
1963 mm
(6'5")
1525 mm
(5'0")
3050 mm
(10'0")
2834 mm
(9'3")
3354 mm
(11'0")
3641 mm
(11'11")
3969 mm
(13'0")
5273 mm
(17'3")
1146 mm
(3'9")
467 mm
(1'6")
101 mm
(3.9")
2750 mm
(9'0")
2065 mm
(6'9")
6133 mm
(20'1")
2675 mm
(8'9")
5537 mm
(18'1")
2852 mm
(9'4")
54 degrees
49 degrees
45 degrees
33 degrees
40 degrees
15 928 kg
(35,104 lb)
18
20
High Lift
3340 mm
3669 mm
685 mm
386 mm
8397 mm
1968 mm
1525 mm
3050 mm
3415 mm
3561 mm
4222 mm
4550 mm
5853 mm
1413 mm
686 mm
135 mm
2750 mm
2065 mm
6490 mm
2675 mm
5537 mm
2852 mm
(10'11")
(12'0")
(2'2")
(1'3")
(27'6")
(6'5")
(5'0")
(10'0")
(11'2")
(11'8")
(13'10")
(14'11")
(19'2")
(4'7")
(2'2")
(5.3")
(9'0")
(6'9")
(21'3")
(8'9")
(18'1")
(9'4")
53 degrees
47 degrees
50 degrees
33 degrees
40 degrees
16 177 kg
(35,653 lb)
*Vary with bucket.
**Vary with tire.
Dimensions listed are for a machine configured with 2.5 m3 (3.2 yd3) general purpose Fusion bucket, bolt-on cutting edge, optional counterweights,
additional guarding, 80 kg (176 lb) operator and Michelin 20.5 R25 (L-3) XHA2 tires.
3
938K Wheel Loader
For more complete information on Cat products, dealer services, and industry solutions, visit us on the web at www.cat.com
© 2012 Caterpillar
All Rights Reserved
Printed in U.S.A.
Materials and specifications are subject to change without notice. Featured machines in photos may include additional
equipment. See your Cat dealer for available options.
CAT, CATERPILLAR, SAFETY.CAT.COM, their respective logos, “Caterpillar Yellow” and the “Power Edge” trade dress, as
well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.
AEHQ6423-01 (05-12)
Replaces AEHQ6423
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