Western Region
Underground Masters
Mechanics
June 13, 2002
Rod
Cymbulak—Chairman City:
Elko, Nevada
Gary
Brouse—Secretary
Steve
Volkert—Treasurer
Rod Cymbulak opened the meeting with the introduction of members. Rod
reviewed the minutes from the last meeting. The new members of the group where
updated on the Web site and passwords for the site. There were 17 members
present at the meeting. Steve Volkert gave the financial status of our
organization.
Anglogold informed the group what they have found on
the stud breakage on the EJC 30-ton trucks. It was found that the bump ring was
tight but the flange ring on the outer edge of the rim was at 17.250 “ and the
spec.’s called for 17.01”. Tamrock has replaced these rims with the correct
size and will address this problem with there rim supplier. The rims have run
for 3 weeks with no failures at this time. Adding to this Asarco and Greens
Creek are now experiencing stud problems on the Toro 40 tom trucks and will
look at and inform the group on their findings.
The drop box problems with the Tamrock 007’s have
been solved hopefully with the latest version of drop boxes. Up dates have
included seal removal; lube relief system, splined coupling and gears. The
latest versions have been running for about 30 days.
Guadalahara rebuild done on a Greens Creek loader had a completely inclosed cab. There are problems associated with the use of cabs, which is bending the cabs on the ribs and keeping glass in the cabs. Another problem in bending the FOPS or ROPS and no certification tags are on the EJC’s and 40 tons trucks causing issues on whether mines can weld on it or not. Use caution when making repairs on these issues. There are some companies out there that will certify repairs on ROPS and FOPS.
Listed below are some of the safety issues that have
come up with MSHA in the past quarter. Citations on wheel chocks on machines
with jacks down have been issued. We need to talk to MSHA on clarification on
this issue. Jacks down in the past have always been acceptable and been common
practice. Another MSHA issue at Newmont was having only 4 ¼ lbs. of fire
retardant in what was labeled a 5-lb. extinguisher on the machines that require
a minimum of a 5-lb. unit. The inspector weighted this unit. These were
standard Ansul 5 lb. units. A third issue was brought up as to other mines have
been asked to have a lanyard on the mechanic when working on the deck of a
machine to include servicing the equipment. Various mines have had to do some
variations of this rule. Barrick installed hooks on there 30-ton trucks to tie
off on.
DPM samples was done at Newmont by MSHA on the rib
and the operator. This will be discussed later in the meeting.
Anglo gave the group an update on the new jammer
attachment they are having built which telescopes. The difference is this units
tube which mounts the jammer plate telescopes outside the tube which mounts on
the loader. This should keep the cement from packing into the inside taking out
the extension cylinder.
All members were asked to continue to look for ways to enhance membership to WRUMM. It was decided that first time companies attending our meeting would not be charged dues for that meeting. This would give them a chance to see what we are about and trying to accomplish.
Imput flange on the transmission has been coming
loose on the 40D trucks. Torque is supposed to be 350 foot pounds on a fine
threaded shaft. Output flange does not come loose. Suggested using some red
locktite and hitting it with an impact.
Newmont removed the carrier bearing on the rear
driveline and this eliminated the driveline problems on the MT2000 Wagner
Truck.
Bud Lauderback gave the group some information on
Dragon Drill sites that are wire or wireless. If you need information on this
contact Bud at Anglogold at 775-738-5006 ext. 383. Or at blauderback@anglogoldna.com.
Barrick has installed a Cummins engine in their
shotcrete equipment to test the reliability of the Cummins engine in an
underground environment. Anglogold is trying a VM Motori engine in their units.
They had to install a side mount cooler package for the engine when this was
done while moving the transmission cooler into the old water cooler position.
Asarco has had problems with over heating of the
aluminum Bosch brake charge pump on their Getmans. Tamrock suggested Cessna
pumps as a possible pump option. The mine temperature is about 110 degrees. If
anyone has had these problems and has a fix please contact Rod Cymbulak at rcymbaluk@asarco.com.
Vendors for the next meeting could be Carwill
(bolt-together buckets), Ed Tomany State Mine, Ford tractors, A1 Radiator,
Bessor, Jackleg Drill Company, Reliability Centered Maintenance Speaker, and
John Deer.
Owned by John Mentaberry and has been in business
since 1989 and has 15 employees.
Their company does all types of transmissions rear
ends and all aspects of over the road truck repairs. They have machine shop
capabilities to include balanced drivelines and cylinders rebuilds. This full
service machine shop is equipped with lathes, milling machines and has sources
for C & C needs. They rebuild and fabricate just about anything needed in
the mining industry. They have a mobile sales staff that services the local
mines and will ship and pickup at any location. They have inventory of bearing
and seals to include Dodge, Nachi and Chicago Rawhide seals stocked in Elko.
They repair drill cradles to include planing the surfaces and inserting hole
plugs. They have rebuilt Kubota front ends to include bearing instead of
bushing. MTE also offers belt and screw conveyor systems and Holder tractors,
which is a utility type tractor with different types of attachments. They work
on issues with the customers on special custom type of problems to enhance
about anything you may need.
Brake Supply—Bill Brown-Tony Still-Conrad Keller
Provide replacement parts and service to the
industry. Founded in1947 with three people in the automotive clutch and brake
business. Have grown to 13 locations world wide with 16 million in inventory
and 250 team members. Serving mining, aggregate, slag and steel industry,
marine and industrial. They distribute new, rebuilt and custom made hydraulics,
pneumatics and brake products. They also supply Denison, Hydreco, Tyrone,
Commercial, Parker and Kawasaki valves and pumps. Kits are built for wheel ends
on different types of mining equipment with one part number to simplify
ordering.
They do quite a bit of exchange components to fit
customers needs and have 3 million in exchange inventory. The company has
consignment inventory as a warehousing option. They have received their ISO
9002 certification for the Casper branch. All customers will receive a teardown
and inspection report on all rebuilt components to include detail on checks and
cross checks. These are rebuilt in a state of the art machine shop with Sunnen
hone and top of the line milling and machining tools. Test stands are on site
to test all types of components that are to be rebuilt utilizing data
acquisition software. This provides an absolute accurate test report to the
customers. Key factors that drive the business are; required date, 48-hour tear
down on work orders, cycle time on repairs and internal warranty reports. The
application engineering and system design area of the business has certified
fluid power specialists within that group. This group also works with
manufacturers to improve their products.
Thiessen Team—Lawrence Thiessen-Rick Karlson
Company was started in 1954 with mining as a focus
for the business. There are three US branches based around shotcrete products
etc. Another part of the company is rotary drilling heads and deck bushings.
Company was started in 1995 in Elko Nevada supplying bulk bag products to area
mines. They employ 15 people in Elko and 3 in Big Timber Montana which services
Still Water Mine. Other areas of business include rammer hammer series rock
hammers, Teledyne utility equipment that is now BTI, rebuilding of utility
equipment. Thiessen now has field service for their and other types of
equipment out of the Elko branch. They have a rock hammer available for rental
if needed. Certified factory Schwing pump technicians are on site with repair
to include service manuals and part stocking for these pumps along with Allen
Town pump parts. Hydraulic pumps are another side of the business. All makes of
dry shotcrete pots can be rebuilt and serviced out of Elko. Rental grout pumps
and service of these units is available. Quick wall interlocking blocks
refereed to as a Jersey Barrier are available for your retaining wall needs.
Material handling is another area of their business. Dust collection, screw
conveyors, belt conveyors, storage silos and indicators, storage hoppers and
bins, structural steel, Colcrete Eurodrill products, colloidal mixers and bulk
bag unloaders for bag shotcrete.
Newmont Gold DPM Studies—Dave Starbuck
By July 19th any additive packages for
fuel must be approved by the EPA and contains no metals. Maintenance is
required to maintain approved engines in approved condition. Must maintain
converters and soot traps installed by manufacture to original condition.
Persons maintaining engines must be qualified to ensure maintenance standards.
These are a few of the reg’s in place that are in or will be soon. Contact Dave
Starbuck at Newmont for a full list if interested.
Closing comments – Rod Cymbaluk
In closing, again I want to thank every one for
attending. It was good to see some people from as far as Alaska. I in
particular benefited from their attendance because we were able to discuss some
common problems on the Toro 40D trucks. This proves that the more people that
attend the greater the result. Let’s all work to bring more people to the next
meeting this fall.