covington 1100 Series Instructions Manual

715 West Colton Avenue

Redlands, CA 92374

Toll Free: [phone] US Only

Phone: [phone]

FAX: [phone]

Email: sales@covington-engineering

Covington Engineering Corp. © 2013

1

COMBINATION SLAB & TRIM SAW INSTRUCTIONS

12”, 14”, & 16” MODELS

DESCRIPTION

Covington’s Combination Trim & Slab Saws are similar in
design with different blade and pulley sizes. Sawing
operations remain the same.

These ruggedly built, fully enclosed units are constructed of
heavy gauge welded steel and feature an inspection window in
the hood. Separately welded inner frame eliminates warp.
One-piece vise carriage, mounted on ¾” steel rod and L way
guide, provides the rigidity necessary for fast cuts with heavy
loads. Vise carriage moves silently on way guide. A quick
return split clip allows the carriage to be manually returned to
any position.

Weight feed action for slabbing utilizes a scale, cord, and
weights fastened to vise. Deluxe power feed models with
overrunning clutch and cut-off switch are available.

The cross feed permits 4” of material to be slabbed without
reclamping. One turn of the spin knob moves the vise
crosswise 1/16” and can produce 10-12 uniform slabs. The
precision 5/8” arbor ball bearings are heavy duty, double
neoprene sealed, and greased for life.

Accessories include operating instructions, motor mount,
drop-in trim table, plastic window, slab-catcher, weight feed
scale, and cord.

INSTALLATION

Safety: Before plugging saw unit into an electrical supply read the Covington Safety Demands
sheet.

Saw Level: Place the portable saw on a sturdy platform or table and make sure the saw is level.
The optional leg stand features a leveling bolt on one leg; adjust the bolt to level saw.

Blade Mounting: The flange must fit snugly and evenly against the blade. Make sure there is no
dirt between the flanges and the blade as this may cause misalignment and warping. Note: New
blades may need to be dressed prior to cutting.

715 West Colton Avenue

Redlands, CA 92374

Toll Free: [phone] US Only

Phone: [phone]

FAX: [phone]

Email: sales@covington-engineering

Covington Engineering Corp. © 2013

2

INSTALLATION CONTINUED

Blade Alignment: Measure the distance between the leading edge of the blade and the edge of

the saw table (at 90 degree angle). Mark the measure spot on the blade. Rotate the blade 180
degrees. Again measure the back part (measured spot) of the blade with the opposite edge of the
saw table (at 90 degree angle); the distance should be the same.

Koolerant Mixture: NEVER run diamond saw blade dry. Always use with a koolerant to
prevent heat build-up, keep diamond intact, and wash out fine rock cuttings. Water alone, or with
detergent, is not a good koolerant as water in any form eventually causes rust on steel parts.

This unit features the “immersion” method wherein the diamond blade runs in a reservoir of
cooling fluid. Fill the reservoir until koolerant mix stands ¼” to ⅜” on the bottom of the blade
when standing still. Blade guard and front shield control excess spray. An optional clear plastic
hood is available to cover the entire trim saw table.

For cutting rocks with a Mohs scale hardness of 5 or less, use Covington Koolerant #1 (add 9
parts water). Mix well before pouring into the saw reservoir. For cutting rocks with a Mohs scale
hardness of 6 or more, use Rock Hound Oil.

MAINTENANCE

Lubrication: Parts such as threaded rod, shafts and steel guide inside the saw should be greased

to prevent rust. Do not grease the saw arbor bearings or the motor. The bearings are sealed and
greased for life.

Blade: Sharpen the blade occasionally to prevent glazing over. Make several cuts into a 220g
silicon carbide dressing block or a soft, porous, red brick. Reverse blade periodically. Stopping
and restarting unit during a cut almost always leaves a blade mark.

PREPARATION

Load Vise: Move vise away from blade and clamp rock between vise jaws tightly. Secure the

rock with wood wedges if necessary.

#2 Rigid Grip Vise: The vise jaws are built for nonbinding free application. To open, lift the
tightening knob upward and free the spade from the ratchet slot and pull the vise jaw towards
you. Place the rock in the vise and push the vise jaw against the rock. Set the spade in the nearest
ratchet slot and tighten the vise by turning the vise knob counterclockwise.

Weight Feed System: The system is designed to feed the rock to the saw blade by use of a
weight. To assemble the weight feed system, fasten the nylon cord to the vise carriage (rear
underside), thread cord through the snubbing ring in the back wall of the tank and tie the other
end to a small scale. Suspend an empty bucket from the scale.