Raytech Jem Saw 45 Operating Instructions Manual

The Jem Saw 45 will cut slabs of any length with the addition of the slabbing
table (stock #20-041). This option allows over the arbor trimming in the case of
large or odd shape slabs. Figure #3 is a top view of the installed slabbing table.

CLEANING SUMP

The plastic sump liner has been designed to be easily removed and cleaned
when sludge from cutting builds up. Follow instructions for mounting the blade,
up until Step 3. At this point, the sump liner can easily be lifted free from the
saw and cleaned.

SHARPENING BLAZER BLADES

Raytech Red Blazer blades are exceptionally free cutting and seldom, if ever,
require sharpening. However, if the blade is used exclusively on agate or jade, or
if the blade has been used to cut hard materials with a water based coolant, the
blade may require dressing (sharpening). You can effectively sharpen your blade
by cutting 10 sq. in. of an old 100 grit or 220 grit silicon carbide lapidary grind­ing wheel. Raytech sells a blade sharpening stick made especially for this pur­pose. (Stock #32-017)

Raytech Industries

A Division of Lyman Products

475 Smith Street, Middletown, CT 06457
Tel [phone] Fax [phone]
Visit us on the web @ www.raytech-ind.com

Instruction No: 04297 08/10

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45

Operating Instructions for

Jem Saw 45

UNPACKING YOUR SAW

Upon receipt of your Raytech Jem Saw 45, remove from carton and check for
shipping damage. Make sure that all parts have been received. The diamond
blade has been packed on the top of the inside of the carton liner. The blade
guard and arbor wrench are packed under the saw table in the plastic sump
liner. At the front of the motor box, a carriage bolt has been installed for ship­ping purposes only. The carriage bolt is in a slot directly in front of the motor
box hold-down thumbscrew. Remove the carriage bolt and nut and discard. Also
for shipping purposes, a plastic washer has been assembled onto the motor box
hold-down thumbscrew. Remove the thumbscrew completely to remove the
plastic washer. Replace the thumbscrew, and discard the washer. After removing
the saw from the carton liner, it may be bolted to a bench using the holes pro­vided in the base. For most work, bolting the saw down is not necessary.

MOUNTING THE BLADE

To mount a diamond blade on the saw, use the following procedure:

1. Unplug electrical cord from wall socket.

2. If the blade guard is attached, remove it by loosening the thumbscrew on top
of the motor box.

3. Locate the thumbscrew at the front of the saw which holds the motor box
down. Do not remove this thumbscrew, but just loosen enough to swing it
forward, freeing the motor box, which can now be lifted up.

4. Lift off the saw table and turn it upside down. You'll notice a small piece of
black sponge at the rear of the blade slot. If you are installing a 4" blade, the
sponge piece will stay in place. If a 5” blade is to be installed, remove the
sponge block.

5. With the allen wrench supplied, remove the button head screw which holds
the outside blade flange to the adapter arbor. Insert the outside flange into
the 5/8” arbor hole of the diamond blade. If the flange does not fit into the
blade, remove the paint from the edge of the blade arbor hole by scraping
with a knife. Install blade and outside flange onto the adapter arbor and snug
up the button head screw with the allen wrench. Flats are provided on the
adapter arbor for a 9/16” wrench if needed to loosen the arbor screw.

6. Lower the motor housing and tighten hold-down thumbscrew.

7. Install blade guard, (SEE "BLADE GUARD ADJUSTMENT") and plug in elec­trical cord.

BLADE GUARD ADJUSTMENT

The blade guard on the Jem Saw 45 is adjustable to allow either a 4” or a 5”
blade to be used. As it comes from the factory, the guard is bent to accommo­date a 5” blade. If you are installing a 4”, simply bend the front of the guard
down (see figure #1) before installing. This will minimize the overspray from
the blade.

COOLANTS

A coolant must always be used when cutting with a diamond blade. Your Jem
Saw 45 is equipped with a plastic sump to hold the coolant. The saw blade dips
into the coolant, carrying it to the rock being cut to keep the blade cool and
lubricated, and also flush chips out of the cut area. A light cutting oil such as
Shell's Pella Oil, or Texaco's Almag is the best all-around coolant. Pella Oil is
available from Raytech by the gallon (stock # 40-007). For light duty trimming
of soft materials, Raytech's Ray-Cool water additive is satisfactory (#40-001,
1/2 pint). Ray-Cool contains wetting agents and corrosion inhibitors, but does
not contain lubricants. When using plain water or water plus Ray-Cool, it will be
necessary to oil the sliding parts of your saw (such as vise rod) from time to
time. NOTE: It is not recommended to use water or a water based coolant with
Pro-Slicer blades.

To determine the correct amount of coolant to add to your saw, simply pour the
coolant slowly onto saw table while saw is running. The correct fill level has
been reached when a steady stream of coolant flies off the blade and hits the
table.

USING THE SAW

The Jem Saw 45 has been designed to provide the best angle of cut between the
blade and saw table. Not only does the blade cut most efficiently with this
design, it also allows square inside comers to be cut. (important when trimming
out cabs such as hearts and crosses). See figure #2.