LORTONE LS12 Slab Saw Instructions

Table of Contents

The LS12 is a quiet, fully enclosed, professional quality 12” slab saw.
It comes equipped with a powerful screw-feed and a 4 1/2” capacity vise.
Properly set up, operated, and maintained, the LS12 will easily cut most rock and non-metallic materials. Oil coolant is required.
Bench-Top Design
Power Screw-Feed
Sturdy Welded Steel Frame
Hinged Hood with Tempered Glass Window
12” Blade (LS12C only)
Overload Protected 1/3 HP Motor (LS12C only)

Check to make sure you have received the following parts:

IMPORTANT

Read the following instructions before assembly or use. Failure to follow instructions can result in damage to the machine or injury to the operator.
(1) Operators Manual and Warranty Card
(1) 12” Diamond Blade (LS12C only)
(1) 1/3 HP Drive Motor (LS12C only)
Note: The motor for this unit is shipped separately.
Remove the saw from its packing and place it on a sturdy, flat, level surface.

Secure motor to motor mount with bolts provided.
Install adjustment bolts in the motor mount as shown and attach the motor to the saw frame.
Place the motor pulley on the motor shaft. Tighten the set screw securely.
Install the belt and adjust the motor to obtain the correct belt alignment and tension.
Do not over-tighten the belt as this can lead to excessive noise and premature bearing wear.

BELT GUARD INSTALLATION

SLAB CATCHER

ELECTRICAL CONNECTION

COOLANT

We recommend LORTONE Cutting Oil #086-010 for optimal results.
Use a neutral petroleum-based oil with a high flash point and no additives.
Add approximately 2 gallons of coolant until the bottom 1/4”-1/2” of the blade is covered.

CAUTION

DO NOT run the saw without proper coolant.
DO NOT use Kerosene or other flammable solvents.
DO NOT use water or water-soluble oils.
Failure to follow these instructions can result in damage to the machine or serious injury to the operator.
Use of these coolants will void the warranty.

Clamp a Blade Dressing Stick in the vise. With the hood closed and the saw running, make several cuts through the stick. Repeat as needed.
Dress the blade frequently. Dull or glazed blades will quickly dish or warp.
Note: Dished or warped blades are not covered under warranty.
YOU MUST DRESS THE BLADE BEFORE INITIAL USE.
This removes the protective paint from the cutting edge of the blade.

OPERATION

Make sure all Switches on the Control Box are in the “OFF” position (toward the saw) before opening the hood.
Clamp material securely in a vise. Check for looseness of the material and re-tighten if necessary.
Adjust cross feed and hand tighten the carriage lock screw #488-056. See Fig A.
Check to be sure that the material will clear the arbor shaft cover and the blade flanges.
To release the carriage, pull the half-nut lever toward the control box. Slide the carriage to the desired position and release the half-nut lever. Make sure the lever is fully engaged.
Adjust shutoff chain #447-001 for the desired length of cut.

To Start Saw:

Note: The “Power” switch operates the motor and supplies power to the “Feed” switch. The “Feed” switch operates the feed motor only and will not work with the “Power” switch in the off position.
Close the hood and make sure both switches are in the “OFF” position.
Turn the “Power” switch to the “ON” position to start blade rotation.
To start the power feed, turn the “Feed” switch to the “ON” position.
While Cutting: IMPORTANT- DO NOT LEAVE SAW UNATTENDED
Listen for changes in operating noise. Sudden changes can indicate damaged material or blade.
Overheating of the main motor can result in tripping of the safety overload protector.
Note: Tripping the safety overload protector does not shut off the power feed.
To prevent blade & saw damage, IMMEDIATELY turn off both the “Power” & “Feed” switches. Inspect the machine and blade for damage and correct any problems before continuing.
When cool, press the red reset button on the drive motor to reset the protector.

At End of Cut:

P ush both switch toward the saw to the “OFF” position before opening the hood.
Remove the cut slab. Inspect the remaining material to make sure it is secure in the vise.
Loosen the carriage lock screw and advance the carriage by turning the cross-feed wheel.
Each turn advances the cross-feed carriage approximately 1/16 inch (.062).

The saw should be cleaned periodically when sediment builds up to a depth of 1/4”.
Unbolt the saw case from the coolant pan and lift out the case.
Empty the coolant pan and wipe the sludge from the case and power the feed screw.
Re-install the case in the coolant pan, attach bolts, and add clean and/or filtered oil.

Item	Description	Item	Description
052-051	Arbor Shaft	119-001	Cross Feed Crank Handle Assy
053-028	Flange (2 required)	200-005	Carriage Bearing
052-020	Feed Rod Coupling	200-006	Arbor Bearing
052-022	Power Feed Support	201-012	Feed Rod Bearing
053-001	Feed Rod	204-001	Bearing Strap
053-003	Cross Feed Bolt	205-010	Felt Washer
053-004	Bracket, Bearing	206-031	Retaining Ring
053-005	Channel, Carriage	210-038	Belt (4L360)
053-006	Shaft, Cross Feed	211-009	Motor Pulley (2-1/4” x 1/2”)
053-008	Threaded Vise Bolt, Cross Feed	211-031	Arbor Pulley (4” x 3/4”)
053-009	Vise Bottom Plate	213-002	Spring
053-010	Vise Top Plate	215-002	Carriage Collar (5/16”)
053-011	Vise Pad, Top	215-003	Set Collar (1/2”) (2 places)
481-081	Wing Nut	215-009	Set Collar (3/4”)
053-012	Slab Catcher	260-001	Window
053-013	Arbor Cover	290-001	Hood Handle
053-014	Motor Mount	290-012	Hood Brace
053-016	Carriage Way	301-051	Power Feed Motor
058-017	Vise Pad, Bottom	304-012	Switch
053-047	Window Key Rubber	304-013	Switch Hex Nut
053-048	Window Rubber Seal	304-014	Switch Lock-Washer (not shown)
053-109	Control Box (Box Only)	305-002	Receptacle
053-106	Belt Guard	320-004	Strain Relief
053-100	Hood	350-002	Cord
053-101	Case	447-002	Shutoff Chain (21” long)
053-102	Vise Carriage	481-057	Arbor Nut
053-104	Coolant Pan	488-056	Carriage Lock Screw
053-107	Half Nut	566-012	Replacement Blade Dressing Stick

LORTONE-LS12-Slab-Saw-FIG-6

Model LS12

CAUTION!

Failure to follow these instructions may result in injury to the operator and damage to the machine.
FOR PROPER OPERATION USE ONLY 5-10 wt. PETROLEUM OIL, NON-DETERGENT TYPE, WITH A HIGH FLASH POINT
DO NOT USE water, water-soluble oil, solvents, fuels, anti-freeze, or vegetable oil.
Use of these or other materials will result in substandard performance and damage to the machine is not covered under warranty.
We suggest LORTONE Cutting Oil #086-010
LORTON, inc 12130 Cyrus Way, Mukilteo, WA 98275 U.S.A
Phone: 425-493-1600 www.lortone.com