Targeting barriers
Raytheon Missile Systems
destroys walls that hinder
plant and personal growth
by Paul V. Arnold
Drive along the surrounding roads, past the desert cacti and scrub brush, and your eyes
catch the tall fences capped with gleaming razor wire.
Pull up to the visitors' entrance, behind cars with U.S. government license plates, and
say hello to the burly sentry who guards access.
Walk into any of the company's 24 manufacturing buildings with your employee escort and
feel like a rat in a maze. The view from the corridors? Walls to the left,
walls to the right. Doors to production areas are locked and colored tape covers
windows.
Pass through electronic gates, turnstiles and another sentry to walk in and out of various
sectors of the 3 million square foot site.
If you think Raytheon Missile Systems is full of barriers today, you should have seen the
Tucson, Ariz., facility a few years ago.
Barriers to greatness
Raytheon Missile Systems, a division of Raytheon Company (No. 70 on the Fortune 500 list),
is the country's largest manufacturer of precision-electronic tactical missiles. The
Tucson site designs, builds and ships 14 different products, including the Advanced Medium
Range Air-to-Air Missile (AMRAAM), Tomahawk, Stinger, Sidewinder, Standard, Rolling
Airframe Missile (RAM) and the Tube-Launched Optically Tracked Wire-Guided missile (TOW).
Besides the U.S. Navy, Air Force and Army, the company's customers include 44 foreign
governments.
With that product line and clientele, barriers (i.e. security measures) are essential.
But the Tucson plant had plenty of barriers inside those top-secret manufacturing areas:
* Physical barriers stood in the way of manufacturing flexibility, productivity and
teamwork.
* Psychological barriers formed between the more than 10,000 salaried and hourly
employees, and between the former employees of companies that merged into Raytheon Missile
Systems.
* And, occupational barriers limited employee satisfaction, mobility and growth.
Raytheon Missile Systems brought its internal walls down. Here are the battle plans
that triggered its success on the manufacturing, employee relations and career enrichment
fronts.
A road map to total plant improvement
Are you one of those drivers who has no clue where they're going, but keeps on driving?
Why do many of us do this? Because we're afraid to ask for directions.
Or, we don't consider ourselves "lost." Or, we don't care that we're
lost. (It's the scenic route, part of the trip.) That scenario is all too
common in
industrial plants.
Managers and operators too often accept what they're given and fail to ask, "Why are
we doing it this way?" Speaking up and inciting change is risky.
A production area will be visually and overtly flawed. A production line will be
riddled with barriers. But most decide to live with the lot they're dealt, will
remain lost, instead of either stopping for directions, or pulling out a map and finding a
better route.
Ruth Jacobson, principal manufacturing engineer in Raytheon Missile Systems' AMRAAM
factory, has a map. Two, to be exact. One shows her area's production process
prior to 1997. The other shows the way things work today. Side by side, they
look like a set of before-and-after diet pictures.
"This was the original flow," she says, shaking her head. "There were
so many walls in here, areas were totally separated. There was a stores area that
had walls around it. We had a walled area where we were doing our guidance section.
The people in the transmitter area had to go through two doors, go through another
keyed, locked door, to enter another area. To get back, they did it all over
again."
AMRAAM looked more like a condominium complex than a production center.
"We didn't intend it to be that way," Jacobson says. "Some of it was
the result of so many movements through the years. We shrunk areas of production.
We'd add one process, but drop two or three. And because everything was so
stationary, we were left with these blank spots in the middle. So we filled them
with other areas and tried to keep them separate. The result was a disjointed
factory."
If you followed an AMRAAM missile from raw components to finished product during the
barrier-filled years, you'd walk six miles. Today, it takes less than half that
distance. And the map outlining the production process shows clean lines, smooth
flows and logical progression. What happened? Agile manufacturing.
Agility drills
Raytheon Missile Systems embraced the agile plant improvement methodology in October 1995
and over the past
4 1/2 years has injected it into the facility's production centers.
Adapted from the General Motors-Toyota Competitive Manufacturing Principles, it's goal is
to improve quality, cost, responsiveness and customer satisfaction by eliminating waste
and by involving all employees.
RMS armed the agile weapon with 16 bullets (see sidebar below). A seven-phase,
45-step, 395-substep process drives a project from start (appraisal, preparation and
analysis) to mid-point (planning and execution) to finish (integration and
performance). Agile came to Jacobson's area in
late 1997.
Agile concepts used at Raytheon
Missile Systems
Agile tools and equipment: Methods,
tooling and material used to
support the following 15 concepts.
Andon systems: Cards, lights, etc. on top of machines that provide a
signal, not only that the machine is down but a given response to that signal is required.
Elimination of waste: Eliminate things you don't need; eliminate
non-value-added tasks; keep workplace clean.
Error-proofing: Seek methods that eliminate mistakes.
Flexible work cells: Overhead utility grids and mobile
workstations. Where possible, put things on wheels.
Level schedules: To produce 60 missiles in a five-day work week, produce
12 every day, instead of days that produce 8, 12, 15, 9 and 16. If demand for
material consumption isn't at level, suppliers can't truly deliver just in time.
Line balancing: Make sure operations are similar or the same. Look at how
operators' eight-hour schedule is filled and how the product moves.
Local supermarkets: Point-of-use material is essential.
Parts presentation: Get the parts to the operator. This saves time,
reduces handling and transportation of parts.
Planned maintenance: Schedule all PMs and the correct amount of manpower
to do the job.
Process controls: After applying corrections, incorporate tools that
stabilize and reinforce.
Pull systems: Container exchange systems; card systems. Replace only what
is consumed.
Reduced lot sizes: Aim for a lot size of one. This greatly reduces cycle
time and work in progress.
Set-up reduction: If you can set up quickly, you don't need to batch
items, which means you reduce lot sizes and the product moves through faster.
Visual controls: Does the factory speak to you? Can you find out what's
going on just by walking through it?
Workplace organization: Organize the area; treat the operator like a
surgeon; a place for everything and everything in its place. |
After supervisors and core team members (hand-picked
salary and hourly workers) accepted and learned the battle plan from agile manufacturing
instructors such as Jim Serazio and Jim Varboncoeur, they helped preach and teach the
message to co-workers.
Then, as the battle began, representatives from every AMRAAM discipline (engineers,
operators, production control, material control) came together and put the old process
under the microscope. Everyone's opinions and ideas were heard. Then, the
group began to remap the process.
They built production areas in a logical sequence. They systematically arranged
processes that had been dropped into holes. They shifted unrelated processes to one
end of the factory or removed them completely. The changes were drastic.
"Nearly every piece of equipment, every work bench, everything was relocated,"
says Jacobson.
Walls weren't relocated. They were obliterated, creating a physically and mentally
open environment.
"The boundaries were erased," she says. "With no walls, there's more
communication between teams. They can see what each other is doing. There is
not as much isolation, not as much 'my team' and 'your team.'"
AMRAAM and other model factories such as Stinger and TOW use agile devices such as
overhead utility grids, flexible work cells, parts presentation carts and products that
work like Tinker Toys.
A truly mobile home
Many plants stick with a flawed or doomed floor layout because the job of moving heavy
machines and overloaded workstations, cabinets and tables is gargantuan.
On top of that, many are restricted by poles and floor units that hold the area's
electricity, telephone and computer cords and cables, as well as air power and vacuum
hoses. They must either work around this hard wiring or move it at great cost.
Add it up and you have a project involving a host of personnel (production managers and
employees, electricians, engineers, maintenance employees and contractors) and anywhere
from a few days to a few weeks.
Installing overhead utility grids and wheeled work structures create a level of
flexibility previously only dreamed of.
"From floor to ceiling, we're configured to meet the needs of today and
tomorrow," says Stinger production manager Tom Stamps. "Literally
everything in here is on wheels, except for things that positively can't (flammable
cabinets, solder machines and large test fixtures). In nearly all cases, the mobile
items are arranged in the middle and the monuments (stationary items) are on the edges.
The overhead grid frees up the floor. You can still see where the poles used
to be. Envision those standing and you'll get an idea of how much dead space was in
here."
Poles weren't the only problem. Overflowing workstations, cabinets and toolboxes
crowded the aisles.
Workplace organization teamed with the mobile concepts to reduce Stinger's production
square footage by more than 50 percent.
"We shrunk our production area, but it's not crowded at all," says Stamps.
"We built a special engineering room and a circuit card assembly area in the
back with the amount of space we freed up."
Stinger cleaned house.
"We wanted to get rid of as much 'stuff' as possible, take it off the
workstation, so they would have a better place to work," he says.
"Everything is in bins above them. There's a bin for everything and everything
is in a bin. We cleared out and organized drawers. Now, we have a specially
designed drawer for tools. In the past, everyone had a toolbox or just dumped their
tools in a drawer. We installed a foam liner in the drawer with holes for specific
tools. We wanted to make it almost surgical, designed for your job and needs.
So, the first tool you pick up is this, then this. It's all in order of use.
If you don't use a particular tool, it doesn't belong in there."
The surgical theme also is used for mobile point-of-use parts presentation carts,which
house fasteners and other MRO materials.
"Would you want the surgeon who's operating on you running to the next building to
get something required for the job?" says Varboncoeur. "We want to have
everything that's needed at hand."
Every bin on carts and in workstations includes minimum/maximum level pull cards.
When items in a bin reach a predetermined level, the operator pulls the card and sticks it
in a box. A roving materials person picks up cards several times a day and fills
orders. Thus, the operator never has to leave the work area to search.
Some of the presentation carts, and many other mobile units (work benches, transportation
carts, storage racks) are made of Creform -- plastic-coated, steel piping that's reusable,
easily reconfigured and relatively inexpensive.
"It's like Tinker Toys," says Serazio. "If you build something and
it's not quite right, you just take it apart and modify it."
More than 50 percent of the plant's Creform structures have been reused, and the material
itself is 95 percent reusable.
When a production employee requires a Creform product, he or she creates a sketch of the
work bench, cart, etc. This includes dimensions and whether additional hardware is
needed (extra large wheels, glides for sliding shelves, bearings for rotating tops).
The employee gives the sketch to a maintenance mechanic, the two discuss any design
difficulties and the mechanic builds it.
"Ever heard the term 'monument?'" says mechanic John Mendoza. "When a
craftsperson builds something, they build it to last 1,000 years. They get real
elaborate, use stainless steel. It's a monument to their work. You don't
really need that. What if the person didn't like it, or that person's needs changed,
or there was a better way to do it? You're stuck with all this material and the
original idea. Creform makes a lot of sense."
Just how mobile is mobile?
How does mobility eliminate current and future barriers? TOW production
planning/material leadperson John Roeder discarded a lengthy conveyor belt when that area
went to wheels.
"An assembly line is great when you're doing 100 missiles a day and everyone on the
line is focused on a single operation," he says. "But we're doing half
that and our people are doing multiple tasks."
Doing multiple tasks on an assembly line created large amounts of work in progress (WIP).
"You used to have 36 operations," says Mendoza, who serviced the conveyor on
many occasions. "One person would do two operations, the next would do three,
and as you went on, you'd have 60 pieces in WIP, incomplete."
Now, TOW's work in progress is practically non-existent.
"Getting rid of the belt also made the factory a better place to work," says
Roeder. "It was noisy and dirty, a real pain."
Mobility also released TOW from being shackled to a floor layout.
"In the original factory, the rework area was in an enclosed back room at the far
end," says Roeder. "We knocked down the walls, reduced floor space 75
percent and brought that area out on the floor, where we thought it would best serve our
needs. After two months in this setup, we came up with a better place for it.
We switched the rework area with the supervisors' area. We completed the move in
eight hours."
The Stinger factory offers similar success stories. The first outlines the final
stages of the area's redesign in 1997.
"We needed to be able to run the first day back from Christmas vacation," says
Stamps. "So (product control specialist) Pat Carter, I and a few others came in
on a Saturday. We had to stage all the hardware, make sure everything was lined up
where we wanted it. Well, Pat noticed a major flaw in the setup and showed us how it
would impact production. We had to completely reconfigure."
The small group simply unplugged everything, created a more optimal setup, locked the
wheels in place and plugged back in. Total redo time: seven hours.
Several months later, Carter sought to slightly expand her stockroom area. She asked
Stamps to move a row of production workstations over 3 feet. In less than 15
minutes, a crew rolled the benches and created the required space.
Moving to maintenance
Agile provided a facelift to all of Raytheon Missile Systems' production operations.
But it didn't stop there. In the past year, the concepts have spread to
production support areas such as maintenance and engineering.
Maintenance shops that had become fortresses (walled in by cabinets, tool chests, etc.)
were turned into highly mobile, organized response centers.
Maintenance storerooms that looked as organized as a "Where's Waldo?" book are
now uncluttered. The obsolete junk is gone, as are the cardboard boxes that housed
items. The remainder is neatly organized, most in labeled, plastic storage units.
But the crowning achievement centers around preventive maintenance.
"Most maintenance tasks should be preventive maintenance. That's what buys you
the most in the long run," says maintenance program administrator Ed Marsh.
"We went in and verified all the equipment in the focus areas (sections of three
factories), made sure all that equipment had PMs, then leveled the PM schedule. So
instead of all the PMs coming out at the first of the month, they were level-loaded over
the course of the month. They are planned and scheduled."
And must be completed, final paperwork and all, on time.
Prior to agile, around 15 percent of PMs were done on time. Six weeks later, the
focus area was 100 percent on-time. The project is working its way through the
entire facility, and overall on-time PMs are currently at about 30 percent.
From 'us vs. them' to 'we are family'
Walls, conveyor belts and clutter were visible barriers for RMS employees. But to
many, so were the identification badges they wore on their shirt or around their neck.
Salary employee badges were brown. Hourly employee badges were green.
Why the difference?
"Nobody knows. We were never told why there had to be a difference," says
Stinger employee Debbie Matlock.
Different colors unintentionally created an us vs. them atmosphere.
"People became known as 'brown-badgers' or 'green-badgers,'" she says.
"If you had a green badge, you were looked down upon. Or, you'd walk down the
hall and tell a friend, 'That guy is such a brown-badger.'"
The badges were eventually changed, but in January 1996, RMS' leaders acknowledged that
strong cultural barriers still existed and empowerment wasn't the norm.
"They realized these were the reasons we weren't progressing as fast as we
could," says Serazio.
Top plant management enacted changes to help create a more cohesive populace and an
environment that downplayed job status.
Hourly employees joined salary workers on brainstorming, planning and troubleshooting
teams. This teamwork was essential in spreading the concept of agile manufacturing,
and is crucial today as the plant embarks upon a Six Sigma program.
Hourly workers are asked for their opinions, and managers listen. With this open
dialogue, hourly workers trust salary workers more.
"We put all of our ideas together and make it work," says Stinger employee
Sheila Grosart. "Teamwork is important. You need to be a family.
Heck, you spend as much time with the people in the plant as you do at home with your own
family."
CEP helps employees be all they want to be
Prior to 1987, the Tucson plant, then known as Hughes Missile Systems, offered employees
jobs. Simply put, if you were hired as a custodian, you might someday advance to be
a maintenance mechanic, but if you really wanted to be an assembly test specialist or a
metal fabrication worker, your chances were slim to none.
"You couldn't move around the company," says former maintenance manager Cal
McNutt. "If you didn't have documented experience in that area, you were pretty
much locked out. You were locked into the occupation you were in. You had no
ability to compete for a job outside your current occupation."
So when missile products were eliminated or moved to other company plants, or when the
defense industry faced rocky financial periods, you were powerless to layoffs or
termination.
In 1987, the company and the International Association of Machinists & Aerospace
Workers union developed the Career Enrichment Program to address employees' aspirations
and fears.
CEP is a pay-for-knowledge plan that enables hourly workers to obtain certifications for
particular job units by completing prescribed courses at a local community college.
An employee generally takes seven to 10 semester-long classes to be certified for a job
unit. When an employee attains a certification, his or her pay is immediately
changed to reflect the pay of a person with that job skill. The employee can then
apply for jobs requiring that qualification.
In addition, CEP addresses bargaining unit employee participation, career development,
compensation and labor utilization.
CEP is run by a board made up of representatives from management (McNutt is one member)
and representatives from the bargaining unit. Bargaining unit members serve
four-year appointed terms, and receive a leave of absence from their normal job to serve
CEP on a 40-hour-per-week basis.
Representatives come from the five "family" job classifications (assembly,
fabrication, maintenance, process and support). They design classes and
certification challenge tests, develop unit descriptions, and utilize hourly employees as
CEP instructors and subject matter pros.
Since CEP's implementation, the plant has enhanced its job environment and significantly
improved its labor utilization and flexibility. Occupation categories were reduced
from 132 to 53. More than 400 salary tasks are now assigned to hourly employees,
which reduced task duplication and costs.
In addition, the number of certifications held by employees increased (more than 70
percent of union employees hold rights to two job units, and more than 50 percent hold
rights to three or more), thereby elevating employee skill levels and flexibility, and
making them less vulnerable to job reductions.
It effectively leveled barriers to personal and career goals.
"You can be what you want to be. It's better than the Army," says Jack
Terry, a committee member and machinist by trade.
Committee member Mickey Raper (assembly) tells of an employee hired as a custodian.
"The guy didn't do well in high school, but he got a job here," says Raper.
"He saw an opportunity to improve himself through CEP. He took a full
course load last year and got the utility helper unit. Now, he's going for
manufacturing specialist and his goal after that is to be a production technician."
Adds Terry: "Now he has a career path, and a life."
By eliminating manufacturing, employee and occupational barriers, the Raytheon plant is
able to meet the challenges that lie ahead.
To learn more about Raytheon, visit www.raytheon.com.
This article appeared in the April/May 2000 issue of MRO Today magazine.
Copyright 2000.
Back to top
Back to Cover stories archives
|