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Tech Update

Two companies to be included in the June/July 1999 Tech Update were over-looked. Here’s a rundown of Quadco’s equipment and further details on the Pierce PTH 24 and LogMax models.

quadco.jpg (15786 bytes)Quadco

Quadco Equipment Inc. offers several models of felling and harvesting attachments. High speed saw models 20B and 22 come with 20" and 22" cutting capacities respectively. The 22" model has a 44"-wide throat opening for large butt diameter capacity. A field replaceable tooth holder concept and "full cover" holders providing more weight around the wheel to assure full power are other features.

Quadco’s Ultimate 5600 harvesting head offers a fixed mount and dangle in one package, with the full dangle achieved by combining a hydraulic float valve and mechanical cam.

Both Quadco’s intermittent saw heads – the 2800 and the 2200 – feature lightweight ring saw blades. Only the outer cutting ring rotates, enabling the saw to instantly develop 600 to 700 rpm cutting speed The 2800 cuts a 28" diameter tree in a single cut, usually within 6 to 7 seconds, while the 2200 has a 22" diameter capacity.



Pierce Pacific Manufacturing offers the Pierce PTH 24, with a 30" cut capacity at the butt and a weight of 6,000 lbs. Other features include Rexroth variable displacement motors for torque or speed as required, steel construction, five delimbing knives, automatic hydraulically retracting top knife, self-regulating chain oilers, accurate hydraulic measuring wheel and oversized, induction-hardened pins.

The LogMax 750 is available with a 32" extended saw bar, a top saw, a patented grab arm positioning system, Voac variable dis-placement motors, a heavy duty Pierce rotator with a 60,000 lb. Rotex bearing, and chain and rubber wheels. The 750 and the 5000 include "find end" for processing. The 928, weighing 924 lbs., is a smaller version of the LogMax 3000 .

Model Weight   Cutting 
Feed   Speed Required
TopSaw Delimbing Force Recommended
PTH 24 6,000 lbs. 30"  4.9 m/sec. 100 GPM S 44.5 kN  20-30 tons 141
LogMax 750 3,135 lbs. 28" 5.0 m/sec. 52-62 GPM O 37.1 kN 20 tons "
LogMax 500 1,881 lbs. 22" 3.6 m/sec. 52 GPM N/A 20.5 kN 15 tons "
LogMax 3000 1,155 lbs. 20" 3.7 m/sec. 45 GPM N/A 17.2 kN to 15 tons "
LogMax 928-924 lbs. 16" 2.8 m/sec. 37 GPM N/A 14.7 kN to 15 tons "
Ultimate 5600 5,600 lbs. 22" 14'/sec 65 GPM S 8,260 lbs.@ 3,600 PSI 20 tons 140


Wheel Loaders

Tech Update Editor: Helen Johnson


daewoo.jpg (9402 bytes)Daewoo

Four loaders from Daewoo Machinery Corp. of Georgia have received significant power and design changes recently and two new compact units have been added to the line-up. Although the two largest carry the same series designations as the models they replace, both have been reconfigured for increased performance. The Mega 300-III now has a Daewoo D2366T turbo diesel engine, an improved load-sensing steering system, faster hydraulic cycle times for greater efficiency and improved front loader linkage for better control. The Mega 400-III Plus has also been upgraded with a new turbo-charged, intercooled Daewoo diesel engine and a new ZF trans-mission for increased power to the wheels. The Mega 200-III has improved tip load, long-life tapered roller bearings at centre joint, and new Clark-Hurth axles for improved load carrying. The Mega 250- III has a new direct-injection turbo-charged Daewoo D1146T diesel engine, pillarless front glass, R123 environmentally-approved refrigerant in its climate control system, full electronic display, a new main hydraulic control valve and improved loader linkage for greater control and reduced shock. Both models have a redesigned integrated ROPS/FOPS cab and redesigned steering and braking. The new Daewoo Mega 130-III has a break-out force of 19,100 lbs., while the Mega 160-III, offers 21,000 lbs. breakout force.

All Daewoo wheel loaders are powered with Daewoo-built diesel engines matched to each unit’s hydraulics for optimum performance and high fuel efficiency, says the manufacturer. Bucket capacities range from 2.0 to 5.1 cubic yards.


Case Corporation

Case Corporation’s C Series wheel loaders are engineered to be tough and offer improved performance and productivity, the company says. The 721C has increased horsepower to take on tougher jobs and both the 721C and the 821C now have larger capacity buckets. The all-new longer life transmission provides smoother, automatic torque-dependent shifting for better tractive effort, while the brake pedal transmission de-clutch improvements mean smoother stops and starts. Closed-system, wide-angle steering provides for smoother, more responsive turns, resulting in a 33 per cent improvement in steering ease, while the Optional Ride Control offers improved load retention. Standard features include return-to-dig, return-to-travel and bucket height control. A wide selection of attachments is available for maximum versatility.

New, ergonomically-designed cabs feature customizable operating controls, streamlined consoles and a state-of-the- art display centre centrally located at the steering column for operator convenience. Better visibility is achieved with 11 per cent more glass. An optional package for the 621C reduces sound levels to 72 dBA. The cabs are roomier with more useable space and an option-al air-suspension seat is available on all cab models.

Fast, easy maintenance means superior serviceability, says Case, citing the longer life transmission with cold start logic that increases component duration, advanced electronic diagnostics and seven quick-disconnect couples that provide servicing ease, as well as stacked combination valves that reduce replacement costs and are easier to service. The same class of oil is used in both the transmission and the hydraulics.


Caterpillar Inc.cat.jpg (23028 bytes)

The G-Series wheel loaders from Caterpillar are designed to increase performance, operator comfort and serviceability. The front linkage and lift arms create greater lift and breakout force, as well as greater dig depth, reach and dump height. The planetary powershift transmissions are electronically con-trolled for optimum machine performance and smooth shifts, while high flow rates in the hydraulic circuit provide fast lift and tilt speeds matched to travel speed for faster cycle times.

The 966G and 972G wheel loaders replace the 966F Series II and the 970F and feature the responsive Cat 3306 DITA six-cylinder (10.5 litre) engine that delivers 235 hp (175 kW) in the 966G and 265 hp (198 kW) in the 972G. It produces 60 per cent torque rise in the 966G, for more rimpull, and 56 per cent in the 972G. Two oil-immersed and cooled brake discs at each wheel increase brake surface area by 156 per cent and provide superior braking ability. Buckets are available in various combinations withsizes ranging from 4.25 to 5.25 cubic yards for the 966G and from 5 to 6 cubic yards for the 972G.

The 950G and the 962G wheel loaders replace the versatile 950F Series II and the 960F respectively. The IT62G integrated tool carrier is significantly more powerful than the 950F Series II custom tool carrier it replaces. It features the Cat Quick Coupler system that enables the operator to use a variety of work tools and to change tools quickly without leaving the cab. All three models feature a Cat 3126 DITA six-cylinder (7.2 litre) engine delivering 180 hp (134 net kW) and 38.5 per cent torque rise in the 950G and 200 hp (149 kW) and 41.2 per cent torque rise in the 960G and the IT62G. The G-Series cab has 20 per cent more room and 50 per cent more glass for better visibility, while the monitoring system has a service mode that displays operating parameters and diagnostic codes. Ground level access to key service points makes daily maintenance easy.


John Deere

John Deere’s H-Series line continues its expansion of the four-wheel-drive loader concept, with significant advances made in several areas including performance, productivity, versatility and operator comfort. The largest in the series is the 744H, offering more horsepower, greater tipping loads, larger bucket sizes and faster ramp/road-climbing speeds. Its "fraternal twin", the 744H MH, marks Deere’s commitment to the material handling market. The machines are equipped with a dual-horsepower 6-cylinder Powertech 6125A diesel engine offering 240 hp in first gear and 260 hp in second through fourth gears.

The 744H’s electronically-controlled fuel system automatically increases power to compensate for extra load without requiring the operator to downshift. Combined with a maximum torque rise of 45 per cent, these features allow for better low-speed driveability and greater productivity, says the company. The computer-controlled power shift transmission senses engine power and adjusts the shift accordingly, while the smart shift technology delivers smoother shifts with less delay under all conditions. Equipped with a 5.25 cubic yard bucket, the 50,300-lb. 744H has a breakout force of 42,150 lbs.

Joining the H-Series models 444H, 544H, 644H and TC44H tool carrier, is the 344H, which replaces the smaller 344G. The 344H’s totally new design features rounded integral rear bumper and counterweight, a hinged, full-tilt hood to access all major engine and auxiliary systems. With an emissions-certified Powertech 4.5 litre engine the 344H loader delivers increased performance with net 98 hp. Afurther expansion of the H-Series line includes the TC62H tool carrier, as well as the 624H loader and the TC54H, which replace the 624G and 544G TC respectively.


volvo.jpg (11902 bytes)Volvo

Two new wheel loaders from Volvo offer a size advantage and complement the company’s existing loader line-up. The L330C, specifically built for the logging industry, is the largest, most powerful in its class, with a 498-hp, low-emission, 6-cylinder engine, delivering high torque and quick response at low rpm even under a full load. With an operating weight between 103,400 and 113,320 lbs., the L330C offers the highest lift capacity in the industry, says Volvo. The Z-bar system provides dependable linkage with good breakout qualities. The L220D is the latest addition and offers 352 hp and an operating weight of 66,600 to 71,400 lbs. Both machines feature efficient load-sensing hydraulics that distribute exactly the quantity of oil required for the function used. Load sensing gives precise control of the hydraulics throughout the lifting range. High pump capacity provides quick and smooth movements. The Volvo L180C High-Lift, with an 18,700 lb. (8.5 tonnes) working load, an 18-foot (5.5 m) lift height and a 13.1-foot (4 m) reach, is powered by a 284 hp (209 kW) 6-cylinder engine. The loader has a proportionally- controlled single-lever, electro-hydraulic control, while the grapple’s 360 degree rotation enables the unit to get at timber from all sides. By utilizing the High-Lift’s maximum lift height for stacking, it is possible to achieve a 30 to 40 per cent more efficient use of the wood yard.

Volvo’s patented Torque Parallel Linkage system offers superior breakout capacity throughout the lifting range and exceptionally good breakout force in the top position. It positions the load’s centre of gravity near the front axle to increase stability and fully utilize the tipping capacity. Front axles are equipped with 100 per cent differential lock. The effective dual-circuit brake system offers wet, circulation-cooled disc brakes that are enclosed and completely protected. Pilot-operated working hydraulics that make it possible to operate all movements simultaneously with fingertip control, an easily-adjusted operator seat and a curved, pillarless windshield combine for high precision as well as comfort. The Automatic Power Shift system (APS II) enables the operator to focus on the operation and the cab’s climate control system supplies filtered, fresh air.


Hyundaihyundai.jpg (22244 bytes)

Hyundai’s HL-Series of wheel loaders now offers 11 machines in its line-up. Among the new additions are the HL740-3 loader, the HL740TM-3 tool carrier and the HL740-3 XTD extended-boom loader with high lift capabilities. Also new is the HL780-3, the biggest loader in the Hyundai line. With an operating weight (with buck-et) of 64,590 lb.(29,360 kg) and a bucket capacity of 5.2 to 7.0 cubic yards, the HL780-3 is powered with a 320-hp Cummins N14-C engine. It features a breakout force of 58,130 lb., a total cycle time of 11.2 seconds, outboard planetary gear reduction, wet disc brakes, a full power shift transmission, a quick gear downshift switch and an integral ROPS/FOPS pressurized cab.

The machines share many of the same features including their 130 hp Cummins 6BT5.9C engines, full power shift transmissions and bucket capacity of 2.2 to 2.6 cubic yards. With operating weights in the 25,000-lb. range, the machines feature Z-bar linkage for excellent breakout force and speed, inboard mounted wet disc brakes and oscillating rear axles, with the centre pin located to allow articulation up to 26 degrees for optimum traction and stability. The new link system has been specially designed to minimize transferred stress from the bucket/boom link.

The three models also share a general working speed of less than 10 seconds per cycle, Clark-Hurth axles with spiral-hypoid bevel gear and reinforced planetary final drive, as well as a quick gear downshift switch on the steering column and the joystick lever. The HL740TM-3 tool carrier offers optimal versatility in multiple applications, while the HL740-3 XTD, with a 9'1" extended boom, gives high lift capability. Other machines in the HL series include the HL770, the HL760, the HL750-3 and the HL750TM tool carrier, the HL720 and the HL730-3.


kawasaki.jpg (35917 bytes)Kawasaki

As the oldest ongoing manufacturer of rubber-tired wheel loaders, Kawasaki has been providing a full range of high-quality equipment and support services for more than 35 years. Pioneer of the Z-Link design providing unmatched utility, high breakout force and efficiency, Kawasaki offers a continually evolving line of wheel loaders powered by emissions-compliant Cummins diesel engines.

Kawasaki’s ZIV line of loaders ranges from the 90-hp 50ZIV, with a bucket capacity of 2 cubic yards, to the 410- hp115ZIV-2, with a bucket capacity of 8.25 cubic yards. With an operating weight of 96,585 lbs., the largest in the lineup has a breakout force of 84,900 lbs. with a standard boom and 90,400 lbs. with a high-lift boom. The 10 Kawasaki-articulated loaders share many innovative design features and offer out-board wet disc brakes, ergonomic cab and six-way seat, and single, twist-grip transmission shift. High responsiveness and fast cycle times improve productivity.

Other models included in Kawasaki’s ZIV series are: the 315-hp 95ZIV-2, with an operating weight of 64,595 lbs., a breakout force of 54,670 lbs. and a bucket capacity of 7.25 cubic yards; the 256-hp 90ZIV-2; the 226-hp 85ZIV-2; the 178-hp 80ZIV-2; the 160-hp 70ZIV-2; the 134-hp 65TM-2 and 65ZIV-2; and the 109-hp 60ZIV.

Kawasaki wheel loaders are distributed by T-Mar Industries, a BC manufacturer and seller of forest equipment based in Campbell River and Surrey.


Komatsukomatsu.jpg (21152 bytes)

Komatsu’s newly introduced WA180-3 and WA250-3 parallel tool carriers, at 110 hp and 127 hp respectively, add versatility to any job site. Offering fast cycle times, increased option avail-ability, enhanced serviceability, and Komatsu’s human-first cab design principles, the machines make valuable additions to the Dash-3 Avance line of wheel loaders. Both machines feature the Komatsu S6D102E-1 6-cylinder diesel engine, a fuel-efficient design that meets US and CARB emission requirements.

The electronically controlled transmission, with four for-ward and four reverse gears, permits 38.4 km/h (24 mph) travel speeds. The four-wheel drive with torque-proportioning differentials reduce slippage and promote longer tire life. The kick-down switch, conveniently located on the boom shift lever, requires only a simple motion of the thumb to activate it, automatically downshifting from second to first when beginning the digging cycle. The machines’ versatility has earned them their "Swiss army knife" nickname and a strong market demand exists for wheel loaders with their advantages, says the company. In addition to the standard bucket — with a size of 2.25 cubic yards on the WA180-3 and 2.5 cubic yards (1.9 cubic metres) on the WA250-3 – a variety of coupler attachments are available. And with the correct coupler, the machines will also handle Volvo and Cat attachments, increasing their versatility. The two-door walk-through cabs are mounted on viscous damping to reduce vibration and noise and feature better visibility, see-at-a-glance consoles, increased comfort and finger-touch shifting. The coupler sys-tem provides fast, efficient tool changes without leaving the cab. The units feature gull-wing engine side covers that open vertically with the aid of pneumatic cylinders for easy access.

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