A Likeable Combo
Weyerhaeuser's Shawnigan operation on Vancouver Island finds the Hultdins 851/Madill 3800B combination to their liking.
By Rick Crosby
Vancouver Island is a region where many logging practices have been implemented over the decades as loggers continue to harvest the resource, a lot of it using hand falling. But more and more harvesting is being done with mechanical equipment like the Hultdins 851 felling head Weyerhaeuser is using, most recently to fall trees and widen the road system on a particular site. The Hultdins 851 felling head is mounted on a Madill 3800B log loader and can fall trees up to 34 inches at the butt.
There are a variety of features logging contractors like about the 851, beginning with its low maintenance and quick change around. "An operator can be loading logs in half an hour," Ramshaw says. "It puts lots of wood down and is very easy to look after. It's just a straight machine and works really well." Coupled with the Hultdins 851's practicability is the lack of downtime, often a huge problem with heavy forestry equipment.
If machinery needs repair, a logging operation can be shut down anywhere from a day to a week. "You loose a machine and you can have everything else tied up waiting for it," Ramshaw says. "You may have a loader in the area and if no trees are being felled, you're not getting any wood on the ground." Weyerhaeuser personnel did some looking around and checked out different felling heads before purchasing the Hultdins 851.
"We usually get stuff in here on a demo and demo it for a couple of weeks and see how we like it," Ramshaw explains. The Shawnigan operation has had the 851 for about a year and tested the machine for six months before purchasing it. The company decided on the 851 because it produces. "We were looking for something that will get wood on the ground for us," Ramshaw says. As well as considering durability and productivity, another factor - the weather - must be taken into account before a purchasing decision is made. Snow can make working conditions difficult for fallers, but the 851 can work right through.
The head is also easy to move. When an operator is finished in one area, he can put the felling head in the back of a truck and transport it anywhere in the division. "We haven't taken the machine out of the division yet," Ramshaw says, "but, we could have that machine moved in an hour."
The Shawnigan operation and Chemainus dryland sort, Nanaimo River operation, are part of Weyerhaeuser's South Island Timberlands. About 17 loads of wood are brought into the Shawnigan operation per day by off highway truck, where the wood is graded, sorted and scaled, then reloaded onto highway trucks and transported to Chemainus, 23 kilometres up the highway from Duncan.
The wood is put into booms at Chemainus and shipped to sawmills on the mainland or to local mills on Vancouver Island. The productivity of a piece of equipment like the Hultdins 851 felling head plays a role keeping the whole operation going. "This machine falls the wood so that when we bring in another machine to hoe chuck it's all in a pile," Ramshaw continues. "The 851 also brings wood one throw closer to the road so there's in fact less hoe chucking." The 851 mounted on the Madill 3800's 38foot boom has simplicity built in so the operator can get to work right away.
"There's just one pin in it," Ramshaw says. "There's half an hour from the time you get to the setting to the time you remove the head and put the grapple back on." Forty-five minutes out from the marshalling shack at Shawnigan operation's dryland sort grounds and up on a setting above Skutz Falls, log loader operator Stan Gorle is bunching logs.
The Hultdins 851 was a prototype with a heavier bar and chain than its predecessor and it's been on there for a little over a year." Gorle has been working on this setting cutting wood averaging two feet at the butt for about two and a half weeks. He compares the 851 favourably to other felling heads. "The other one I was exposed to had electronics that got shook up when you were falling," Gorle says. "The big difference is there's less out there on the end of the Hultdins-it's a grapple with a bit of hydraulics."
"The 851 is so simple because there's nothing out there to get shook up," Gorle says. "It's just straight hydraulic grapples with a hydraulic saw, making it dependable and durable for falling." After a few startup problems were worked out, the head ran dependably. In one setting where Gorle was falling with the 851, he was putting down 40 cubic metres an hour and now production is even better. "We had to reroute the hoses because the head had not previously been mounted on a Madill," Gorle says, "but once that was worked out, the head has worked all day with very few problems."
People from Madill and Hultdins consulted with heavy-duty mechanics to make the changes, which included extra valves and pipes that had to be put in to run the saw and tip the head up. "You need to have two extra lines running out to the end of the boom," Gorel explains. "On a regular grapple on a loader, you have open and close and rotation. There are four pipes run out there to do that. You have to have these extra tubes - one to run the saw and one to tip the head up so it stands upright to grab the tree." Gorle knows full well what it's like to work with equipment that isn't reliable.
There have been times when working out an electrical problem, a computer glitch or problems with hydraulic valving has taken days. "It's costly because now not only is the machine not producing, but you've got a mechanic and an operator tied up as well," Gorle says. "That's the other beauty with this falling head. If something does go haywire with it, an operator can just take that pin out, put the grapples back on, and the machine can go back to work. You're not tying up the whole carrier." Each tree Gorle fells will have two logs in it when the tree is processed. It'll take him three quarters of an hour to an hour, depending on the ground, to get a load for an off highway truck.
This is where the 38foot boom comes into play. "I can swing a tree that's 30 feet out in the bush from the machine right out to the road," he says. "That's a big benefit because your hoe chucking costs are down." Craig Lennox is hoe chucking with a Hitachi 480 a short distance from where Gorle works. Lennox, who has hoe chucked for four years and worked behind the 851, agrees with Gorle about its efficiency. "As far as the hoe chucking part of it goes, it's good," he says standing on the back of his machine. "Wherever his machine has gone, this one can go."
Adding to the efficiency of the 851 is the ease of servicing in the field. "I service the head every day because you have to put in chain oil," Gorle says. "I like to keep it full in case I'm out in the bush falling and I can't get to the road that night to service it. I'm comfortable leaving it knowing I've got lots of chain oil to get through the next day."
Parts are also easily replaced in the field. "There's very little that you'd have to go to camp for because it's no harder to work on than a set of grapples," Gorle says. Weyerhaeuser tried taking small wood out with the 851 before falling bigger wood. It worked well in some places and not as well in others. But by all accounts so far the 851 is a felling head that delivers. "Definitely," Ramshaw says, "or we wouldn't have bought it."
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last modified on Tuesday, February 17, 2004