New Caterpillar® 938H wheel loader and IT38H integrated toolcarrier deliver high performance with new engine, differential lock and hydraulics technology
-
- 15 December 2007
- Product News
The loaders also have new features that aid machine health monitoring and service. The in- cab Messenger display provides real time machine performance, engine and diagnostic data to help maximize productivity and component life. The hydraulic and electrical service centres group service points and offer easy access from ground level to limit service downtime. Machine uptime is maximized through the use of Cat Product Link, which provides two-way information flow between the machine and Caterpillar dealer, is standard on the new loaders.
The 938H and IT38H employ a new axle with 100 percent standard front differential lock or an optional, Caterpillar exclusive automatic differential lock for both front and rear. Differential lock replaces limited slip and offers the advantage of reduced fuel consumption and less heat generated in the axle while still delivering improved traction and reduced tire wear. The automatic differential lock monitors machine operation and locks when tires slip as well as during the dig cycle. Both manual and automatic differential lock can be engaged on the go.
The 938H retains the traditional Z-Bar linkage for excellent bucket loading and optimum durability in digging applications. The IT38H features integrated toolcarrier linkage, which is designed for expanded versatility. It has parallel lift for pallet fork use and other material handling tasks. It is ideally suited for applications where different jobs are performed with one machine using a variety of work tools, such as a bucket, pallet forks and a material handling arm. A quick coupler that can be activated from within the cab is available for fast work tool changes. And for expanded versatility, the modular hydraulic valve design allows field retrofit of third and fourth functions for operating hydromechanical work tools, such as rotary brooms.
The 938H and IT38H build on the productive G-Series machines, the 938G II and IT38G II, which the new loaders replace. With peak engine power maintained through a broader engine speed range as compared to the previous models-about 8 percent more power at 2100 rpm, both new machines have net engine power of 134 kW. Bucket capacities range from 2.3 to 3.0 cubic meters for the 938H and up to 5.4 cubic meters for the IT38H in low-density bulk material handling applications.
Responsive, low-emissions engine
The Cat C6.6 diesel engine has displacement of 6.6 liters and is an inline six cylinder. It provides cleaner, quieter operation while delivering superior performance and durability. The C6.6 also has a flat and long peak power curve for quick response in the working rpm range.
At the heart of the patented ACERT Technology is the ADEMTM A4 advanced electronic controller. It integrates and controls engine functions and combines with the common rail fuel system, smart waste gate turbocharger and crossflow head design for precise fuel and air delivery for reduced emissions and strong engine performance. For enhanced fuel economy, the new loaders have the Caterpillar Engine Idle Management System, which maximizes fuel efficiency and provides flexibility in managing idle speeds for specific application requirements.
The engine also has features to reduce maintenance requirements and increase uptime. Oil change intervals are 500 hours. The electric fuel priming pump eases maintenance. All regular service points are accessible from ground level on the right side of the engine.
Efficient hydraulics
Each of the loaders employs a load-sensing, variable flow hydraulic system that senses work demand and adjusts flow and pressure to match. It enables full hydraulic forces at any engine speed. The system delivers faster cycle times, with low operator effort and improved fuel efficiency.
Similarly, load-sensing steering and implement flow make more power available for rimpull and loader forces without requiring the attention of the operator. Hydraulic valving enables simultaneous lift and tilt for faster cycle times. The implement hydraulic valve design accommodates the optional Ride Control System, which cushions the lift arms to provide a comfortable ride and excellent material retention.
Basic Specifications for 938H and IT38H
|
|
938H |
IT38H |
|
Engine model |
Cat C6.6 ACERT |
Cat C6.6 ACERT |
|
Net power (ISO) |
134 kW |
134 kW |
|
Bucket capacity |
2.3-3.0 cu m |
2.3-5.4 cu m |
|
Operating weight |
15 476 kg |
16 334 kg |
|
Full turn static tipping load |
10 167 kg |
9646 kg |
|
Breakout force |
123 kN |
126 kN |
|
Dump height at 45° |
2696 mm |
2805 mm |
938H equipped with Universal 2.8 m³ bucket with BOCE.
IT38H equipped with 2.5 m³ quick coupler material handling bucket with BOCE.
|
Reader inquiries |
Caterpillar Information Centre |
Associated Links
Other news articles
-
Cat® K Series Medium Wheel Loaders Offer Options to Equip Them for Reliable Operation in Harsh Industrial Applications
-
New Cat® 777G Off-Highway Truck Delivers Superior Performance, Unprecedented Fuel Efficiency and U.S. Tier 4 Final Emissions Certification
-
Caterpillar Announces New Parts Distribution Center in Dubai
-
Caterpillar Announces Plans for New Manufacturing Facility in Wujiang, China
-
Cat® D Series Mini Excavators Add More Performance and Operator Convenience to Predecessors' Quality and Reliability
