LEM 688 User manual

Revised 7/2012
MEAT SAW
OPERATING MANUAL
For your safety read all instructions carefully
LEM PRODUCTS
West Chester, OH 45011
Phone: Toll Free 1-877-536-7763

Revised 7/2012
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SPECIFICATIONS
ITEM
DESCRIPTION
Motor
120 V, 60 HZ, ¾ HP, 1700 RPM
Blade Speed RPM/FPM
372 / 970 ( 60 Hz )
Blade Size
76 - 13/16” x 5/8” ( 1950mm x 15mm )
Table Dimensions
Stationary Table 9 1/4" x 22 3/8”
Sliding Table 8 x 22 3/8”
SAVE THIS MANUAL
You will need the manual for the safety warnings and precautions, assembly
instructions operating and maintenance procedures, parts list and diagram. Keep
the manual in a safe and dry place for future reference.
GENERAL SAFETY WARNING AND PRECAUTIONS
1. KEEP WORK AREA CLEAN AND DRY. Cluttered, damp or wet work areas
invite injuries.
2. KEEP CHILDREN AWAY FROM WORK AREA. Do not allow children to
handle this product.
3. STORE IDLE EQUIPMENT. When not in use, tools and equipment should be
stored in a dry, location to inhibit rust. Always lock up tools and equipment and
keep out of reach of children. Unplug from electrical outlet.
4. DO NOT USE THIS PRODUCT IF UNDER THE INFLUENCE OF
ALCOHOL OR DRUGS. Read warning labels on prescriptions to determine if
your judgment or reflexes are impaired while taking drugs. If there is any doubt,
do not attempt to use this product.
5. USE EYE AND HEARING PROTECTION. Wear ANSI approved safety
impact eye glasses and ANSI approved hearing protection when using this
product.
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Revised 7/2012
6. DRESS SAFELY. Non–skid–footwear or safety shoes should be used when
working with this product. Do not wear loose clothing, gloves or jewelry as they
can become caught in moving parts. Wear a protective hair covering to prevent
long hair from becoming caught in moving parts.
7. INDUSTRIAL APPLICATIONS MUST FOLLOW OSHA
REQUIREMENTS.
8. DO NOT OVER REACH. Keep proper footing and balance at all times to
prevent tripping, falling, back injury, etcetera.
9. STAY ALERT. Watch what you are doing at all times. Use common sense. Do
not use this product when you are tired or distracted from the job at hand.
10. CHECK FOR DAMAGED PARTS. Before using this product, carefully check
to ensure it will operate properly and perform its intended function. Check for
damaged parts and any conditions that may affect the operation of this product.
Replace or repair damaged or worn parts immediately.
11. REPLACEMENT PARTS AND ACCESSORIES. WHEN SERVICING,
USE ONLY IDENTICAL REPLACEMENT PARTS. Only use accessories
intended for use with this product.
12. MAINTAIN THIS PRODUCT WITH CARE. Keep this tool clean and dry, and
keep saw blades clean and sharp for better and safer performance.
13. MAINTENANCE. For safety purposes, maintenance should be regularly
performed by a qualified technician.
14. USE THE RIGHT PRODUCT FOR THE RIGHT JOB. There are certain
applications for which this product was designed. Do not use small equipment,
tools or attachments to do the work of larger industrial equipment, tools or
attachments. Do not use this product for purpose for which it was not intended.
SPECIFIC PRODUCT WARNINGS AND PRECAUTIONS
1. GROUND THIS PRODUCT. The electrical power cord for this product is
equipped with a grounded 3-prong plug. Never remove the grounding prong or
modify the plug in any way. Do not use adapter plugs with this product.
When in use, make sure this product is always plugged into a grounded
3-hole electrical receptacle with an appropriate breaker switch inline.
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Revised 7/2012
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2. MAKE SURE THE POWER SWITCH IS IN THE “OFF” POSITION
BEFORE PLUGGING IN THE POWER CORD.
3. DO NOT ABUSE THE POWER CORD. Do not use the cord to pull the
3-prong plug from a power outlet. Keep cord away from heat, oil, sharp edges,
and moving parts. Replace damaged cord immediately. Route the power cord
safely. Protect it from being damaged by other equipment in the shop. Do not
route the cord where it can be walked on or tripped over.
4. IF YOU USE AN EXTENSION CORD, MAKE SURE TO USE ONLY UL
APPROVED CORDS HAVING THE CORRECT GAUGE AND
LENGTH. THE MOTOR IS RATED AT ¾ HP, AND PULLS AROUND 5
AMPS.
Nameplate
Amperes
Extension Cord Length
25’ 50’ 75’ 100’ 150’ 200’
0-5
5.1-8
8.1-12
12.1-15
15.1-20
16 16 16 14 12 12
16 16 16 12 10 -
14 14 14 10 - -
12 12 12 10 - -
10 10 10 - - -
FIGURE A
5. MAINTAIN A SAFE WORK ENVIRONMENT. Do not use this product in
or near damp or wet areas. Do not expose this product to rain. Keep work area
well lit. Make sure there is adequate surrounding workspace. Use this product in
a well-ventilated area. Do not operate this product in the presence of flammable
liquids, gases, or dust. To avoid accidental electric shock, do not let your body
come in contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators.
6. DO NOT FORCE THE EQUIPMENT. This product will do the work better
and safer at speed and capacity for which it was designed.
7. KEEP ALL GUARDS IN PLACE AND IN WORKING ORDER.
8. REMOVE ALL ADJUSTING WRENCHES FROM THE MEAT SAW
BEFORE TURNING IT ON.
9. AVOID UNINTENTIONAL STARTING. Make sure you are prepared to
begin work before turning the START switch on.

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10. BEFORE USING THE MEAT SAW, MAKE SURE THE SAW BLADE IS
PROPERLY MOUNTED. Make sure the saw blade is balanced, its tension
and tracking are properly adjusted, and its teeth point downward and toward the
front side of the table, and it is not bent or cracked. CAUTION: ALWAYS
WEAR HEAVY DUTY GLOVES WHEN HANDLING AND ADJUSTING
THE SAW BLADE.
11. ALLOW THE SAW BLADE UNIT TO SPIN UP TO FULL SPEED
BEFORE FEEDING MEAT INTO IT. When turning it off, allow the saw
blade to spin down and stop on its own.
12. DO NOT FORCE THE MATERIAL INTO THE SAW BLADE.
Apply moderate pressure, allowing the saw blade to cut without being forced.
13. NEVER ATTEMP TO REMOVE MATERIAL STUCK IN THE
MOVING PARTS OF THE MEAT SAW WHILE THE MACHINE IS
PLUGGED IN AND RUNNING.
14. THE SAW BLADE WILL BECOME HOT WHILE CUTTING. Allow the
saw blade to completely cool before touching.
15. WHENEVER POSSIBLE, USE CLAMPS OR OTHER SAFE,
PRACTICAL WAYS TO HOLD AND SUPPORT THE MEAT BEING
CUT. Do not attempt to cut material that does not have a flat surface, unless a
suitable support is used.
16. ALWAYS ADJUST THE BLADE GUIDE ASSEMBLY about 1/2" above the
meat being cut.
17. TURN OFF THE MEAT SAW IF THE MATERIAL IS TO BE BACKED
OUT OF AN UNCOMPLETED CUT.
18. ALWAYS KEEP HANDS AND FINGERS AWAY FROM BLADE.
19. ALWAYS DISCONNECT THE MEAT SAW FROM IT’S ELECTRICAL
SUPPLY SOURCE WHEN NOT IN USE, AND BEFORE PERFORMING
ANY SERVICES OR MAINTENANCE such as leaving the work area, moving
the tool from one location to another, changing the saw blade, cleaning debris
from the unit etcetera.
20. LOCATE THE MEAT SAW ON A FLAT, LEVEL SURFACE THAT IS
CAPABLE OF SUPPORTING THE WEIGHT OF THE TOOL AND THE
WORKPIECES, AND IS CAPABLE OF WITHSTANDING THE
VIBRATION OF THE TOOL.

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UNPACKING
When unpacking, check to make sure all parts shown on the parts lists (pages 14 & 15)
are included. If any parts are missing or broken, please call LEM Products at the number
shown on the cover of this manual as soon as possible.
ASSEMBLY AND OPERATING INSTRUCTIONS
NOTE: For additional references to the parts listed below, refer to pages 14 through 19 of
this manual. Caution: Always make sure the electrical cord with plug (part #146) is
disconnected when assembling, making adjustments, servicing, or performing
maintenance.
LEG ASSEMBLY:
To assemble the meat saw it is necessary to first establish the front, back, left, and right
sides of the saw. You are standing in front of the saw when the sharp side of the saw
blade is facing you. The back of the saw is directly opposite the front of the saw (behind
the cutting blade). The left side of the saw will be to the left of the saw blade from the
front, and the right side of the saw will be to the right of the saw blade from the front.
With the help of another person, carefully set the meat saw on its back side on a flat level
surface. To attach the legs (part #121) to the meat saw frame (part #1), slide the end of
each leg into the grooves in each corner of the meat saw frame. The end of the leg with
the bend and the four holes is the end that slides into the grooves. Connect the legs to the
meat saw with the 16 hex bolts (part #85) and the 16 hex nuts (part #133). It may be
difficult to attach the bolts to the legs nearest the floor with the meat saw in this position.
The remaining bolts may be attached once the saw is upright. Slide the four rubber feet
(part #147) on its legs. Figure B is the schematic of the leg assembly.
FIGURE B

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Table attachment:
Stationary table
All the pieces to mount the stationary table (part #100) are located in one small bag.
First, attach each of the two yellow table extensions (yellow angle iron approx
1¼” × 1¼” × 10¼” inches. Part #150) to the top of the meat saw frame by aligning
the three round holes in the table extensions with the 3 square holes directly in front and
behind the saw blade. The angle will face down. Align two of the stationary mounts (part
#148) with the two holes nearest the ends of the table extensions. Make sure the threaded
holes on the side of the stationary table mounts are facing to the front and back of the
saw, respectively.
Place the yellow lower house plate (part #67) in position such that the 4 holes are
centered over the 4 square holes to the left of the saw blade. Place the last two stationary
table mounts (part #148) over these holes. Again, make sure the threaded holes on the
side of these mounts are facing the same direction as those previously mounted. Bolt
through the meat saw, the lower house plate and the table mounts with the same 3/4 inch
carriage bolts. The square part of the bolt fits into the square hole on the meat saw.
Thread the stationary table stops (part #149 threaded black knobs) into the holes in the
stationary table mounts.
Thread the four adjustment bolts (part #151) into the four holes in the bottom of the
stationary table, and attach the stationary table (part # 100) to the meat saw by sliding the
adjustment bolts into the four table mounts.
To install the depth-of-cut-fence (part #99) to the stationary table, slide the 10” stand rod
(part #94) through the hole in the fence. Secure the 10” stand rod to the fence with the
socket screw (part #93). Slide the supporter (part #95) onto the 10” stand rod and loosely
screw the wing nut (part #96) into the supporter. Bolt the supporter (part #95) to the
stationary table with bolts (part #103).
150
100
148
149
87
97
150

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Sliding Table Attachment:
The sliding table (part #97) fits into the left and right rails (part #61 and #60
respectively). The rails bolt through the last remaining holes of the table extensions. Each
rail has a black stop pin (part #87) through it at one end to stop the sliding table. Pair the
rails such that the black stop pins are facing one another and both are in front of the saw
blade. Attach both rails with the four remaining 3/4 inch carriage bolts.
Slide the sliding table into the rails keeping the bent end of the table up and toward the
black stop pins. The right rail has a small hole near the end opposite the black stop pin.
Insert the small bolt (approx 5/32” diameter, part #152) through the hole, and tighten.
This will stop the sliding table at the other end.
Slip the meat pusher (part #98) over the bent end of the sliding table, and adjust the depth
of cut with the fence.
FIGURE C

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To Raise and Lower The Blade Guide Assembly:
1. The blade guide assembly (part #37) should always be set to about ½” above the
height of the meat being cut. (See Figure F).
2. To adjust the height of the blade guide assembly, loosen the wing nut (part #34),
raise or lower the assembly, then securely retighten the wing nut.
FIGURE F
(Inset)
To Remove The Rear Blade Cover:
1. For cleaning purposes, and to replace
the saw blade, the rear blade cover
(part #68) must be removed.
(See Figure G)
3. To remove the rear blade cover, unscrew the three pan head screws (part #11)
located on the front of the cover.
4. Caution: Never operate the meat saw without the rear blade cover firmly attached
to the unit. (See Figure G).

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To Adjust The Saw Blade:
1. Turn the Two Slotted Inserts (part #20) counterclockwise to unlock the Upper
Door (part#2) (See Figure G and H)
2. Turn the slotted insert (part #20) counterclockwise to unlock the lower door
(part #3) (See Figure H ).
3. Remove the left blade cover (part #68) (See Figure H)
4. Turn the blade tensioner knob (part #30) counterclockwise to lower the upper
wheel (part #4 ). (See Figure I).
FIGURE I