Tennsmith LM1010-2X User Manual

Model LM1010 Performance “R”

Operation, Parts and Maintenance Manual

Model LM1010-2x

Model: Prepared for:

Serial #: Date of Manufacture:

Options: Inspected By:

Notes:

6926 Smithville Hwy. McMinnville, TN 37110

Phone: [phone] • Fax: [phone]

Email [e-mail]

www.tennsmith.com

Proudly Made in the USA

A Family Tradition Since 1928

TABLE OF CONTENTS

SUBJECT PAGE NUMBERS

SHEAR SPECIFICATIONS…………………………………… 2

SAFETY LABELING AND INSTUCTIONS…………………. 3-6

INSTALLATION………………………………………………. 6

OPERATING INSTRUCTIONS………………………………..7-8

BLADE CLEARANCE/ADJUSTMENT………………………. 9

BLADE ROTATION/REPLACING…………………………… 10-11

BACKGAUGE INFORMATION……………………………… 11

HOLDDOWN INFORMATION……………………………….. 11

SHEET SUPPORT SYSTEM INFORMATION……………….. 12

MAINTENANCE………………………………………………. 12

WARRANTY INFORMATION……………………………….. 13

PARTS VIEW AND DESCRIPTIONS………………………… 14-24

ELECTRICAL DIAGRAM AND PARTS LIST………………. 25-28

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LM 1010 Specifications

Maximum Shearing Capacity, Mild Steel 10 gauge/3,5mm

Maximum Capacity of Mild Steel is rated at 80,000 psi tensile 44,000 yield

Maximum Shearing Capacity, Stainless Steel 14 gauge/2,0mm

Maximum Capacity of Stainless Steel is rated at 90,000 psi tensile 55,000 yield

Maximum Cutting Length 121 in/3073mm

Back gauge Range 30 in/762mm

Strokes per Minute 31

Number of Hold downs 16

Motor-230/460v, 3-phase, 60Hz 12.5 hp

Overall Dimensions, Less Gauges, LxWxH 145 x 39 x 59-1/2 in

Floor Space, Gauges in Position 145 x 78 x 59-1/2 in

Shipping Weight 9,400 lbs

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ATTENTION

Please verify that the following safety decals are attached to the LM Shear. If you do
not locate all of the decals, please contact Tennsmith to replace any missing or
unreadable safety labels.

NEVER operate this machine without the proper safety
labeling.

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SAFETY INSTRUCTIONS

1. Do not operate service or perform maintenance prior to reading and

understanding the instruction manual. Become familiar with and understand

the hazards and limitations of your shear.

2. Wear approved eye protection and protective footwear while operating the

machine.

3. Be certain this machine is properly wired and grounded to conform to the

National Electric Code. The connection of this machine to the power source

should only be made by and inspected by a qualified electrician.

4. Keep hands and body parts clear of the hold down, cutter head and blade

area.

5. Do not exceed the rated capacity of the machine.

6. Never leave the machine in a power on condition when unattended.

7. Always disconnect the machine from the power source before attempting

maintenance, repairs or adjustments.

8. DANGER: Do not attempt to remove the hold down before inserting and

bottoming out the hold down compression bolts (71). The compression bolts

were shipped with the machine. When receiving the shear the bolts are

located inside of the electrical box. Please remove them and store them in a

location to be accessible.

9. Do not remove guards unless required to service the machine. Replace all

protective covers prior to operation.

10. Always wear gloves to protect your hands when handling the shear blades.

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11. Insure that the point of operation safeguarding is provided, used and

maintained for any applicable use or service which exposes bodily hazards.

For more details please refer the ANSI Standards for Shear Operations.

12. Keep the Work area around this machine clear and clean to avoid tripping

or slipping.

INSTALLING THE SHEAR

The unit is shipped with a lifting bolt attached on the top of the cutter head. The shear
should be lifted and positioned by using a sling or chain passed through the lifting bolt.

CAUTION: The shear weighs approximately 9,500 lbs. net. Be sure to verify the

maximum load permissible for a given chain or sling.

Locate the machine in a well lighted area on a solid level floor. Use lag screws or bolts
with expandable shields or similar holding devices through the mounting holes on each of
the unit’s side panels (22,51) The center line dimensions for the foundation holes can be
found on the diagram supplied with the manual on page (22).

The shear must be securely anchored to the floor and leveled before operating. Check the
level of the shear with a machinist level both along the length and depth of the machine.
Use the leveling screws (35) provided with the machine to achieve proper level. It may be
advisable to slip a small section of light gauge sheet metal under the leveling screws so
that their adjustment will not penetrate the floor.

ELECTRICAL SPECIFICATIONS

A wiring diagram is located in this manual and inside the electrical box (41). The
connection of this machine to the power source should only be made and inspected by a
qualified electrician. This machine should be properly grounded. Improper wiring may
result in accidental shock which could cause grave injury or death. Motor rotation should
match the directional indicators found on the motor housing. The unit is equipped with
230v/460v, 3 phase, 60Hz motor. The manufacture’s data on the motor will detail its
specifications.

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LM Control Box Overlay

7

LM1010 SHEAR CONTROL PANEL OPERATION

Please refer to the previous page which shows the 4 functions of the control panel box on
your LM1010 Shear

1. On/Off Push/Pull Switch. This switch is located on the upper left corner of the box.
It is labeled 1. on the previous page. To operate the shear, turn the main disconnect
power switch to the on position and pull the Push/Pull switch
light illuminates the switch. The shear is now ready to operate. Please note if your
switch does not illuminate in the out position, you must immediately replace the bulb
located within the switch. It is unsafe to operate this shear without the illuminated
switch. Please contact Tennsmith if you need assistance replacing the bulb.

2. To the right of the Push/Pull Switch
is designated 2 on the previous page. In normal shearing operation this switch should be
in the Run

3. The Jog Button
It is designated 3 on the previous page. The Jog function allows the operator to engage
the motor and move the cutter head of the shear up or down slowly and hold the cutter
head at a particular position. A secondary function of the Jog function is move the cutter
head up if material is ever wedged between the blades and stalls your machine. The
primary use of the Jog function is to check the clearance between the upper and lower
blades at various points within the shearing cycle.

To operate the Jog function, select Jog on the switch 2 in the upper right corner of the
panel. Next, select either Forward or Reverse on the switch designated 4 next to the Jog
switch, and finally push the Jog switch to move the cutter head of the shear.

position.

is located under the Push/Pull switch on the panel.

is the Jog/Run Switch. This selector type switch

to out position until the

Please note: if you are performing a check of the clearance or blade

gap of the shear, the shear must be in an off position at the Push/Pull
switch 1 and at the main disconnect power switch located on the outside
of the box. In addition a lockout tag must be securely placed on the
main electrical connection anytime you are verifying the blade
clearance. If you have any questions on this procedure, please consult
the factory prior to any adjustments on your shear.

4. Stroke Selector Switch This switch is located towards the bottom of the panel and is
designated 5 on the previous page. The switch has two options:

1. Cont – This is for continuous operation of the cutter head of the shear. To engage the
continuous mode, select run on switch 2 (Jog/Run Switch) and select Cont. on the stroke
selector switch. With this mode the cutter head will repeat continuously a full cycle until
the operator releases his foot from the foot pedal of the shear. This mode is useful when
cutting short strips of material that is generally 2” or less.

2. Single – With this mode, the shear will make one complete down and up cycle each
time the foot pedal is pressed. This is the standard mode of operation on this shear.

Please contact the factory if you have any questions regarding the operation of this shear.

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BLADE CLEARANCE

The blade clearance on the LM1010 was set at the factory to .004 in. on the ends of the
blades with a .003 gap in the center of the machine. At this setting, your shear should
provide satisfactory results over a broad range of materials and thickness. However, when
shearing lighter gauge materials a tighter blade gap may be desired. Also, upon turning
the blades to a new edge or after re-sharpening the blades, the blade clearance must be
reset.

CAUTION: Checking the blade gap will require removing the wire

finger guard (80). Do not operate the shear without the guard in place.
To check the blade clearance, set the machine to the jog mode and jog
the cutter head down so that the blades just overlap at the point at
which the inspection is to take place.

WARNING: Disconnect power to the machine prior to making the

measurement. Use a feeler gauge to make the measurement.

The blade clearance adjustment is made in the following manner:

1. Loosen the two table locking bolts (49) located near the mid- section of each side
panel and then retighten the bolts hand tight.

2. Loosen the four table bolts (43), again reasserting only a slight amount of pressure
back to each one.

3. The table positioning screws (20) located at both ends of the table are the means used
to achieve the proper blade clearance. The forward screw pushes the table and bottom
blade toward the cutter head. Likewise, the rear screw adjusts the blade back, thus
increasing the clearance. To set the clearance, place a feeler gauge of the same thickness
as the desired clearance between the two blades. Adjust the forward screw outward until
the feeler gauge is locked between the blades and cannot be removed. Then adjust the
rear screw in the opposite direction until the gauge stock is freed. The opposing actions
of the screws serve to attain a tight, positive setting.

4. After setting the clearance on both ends of the machine, retighten the four table bolts
and the two locking bolts.

5. The blade clearance in the center of the machine controlled by adjusting the center
truss located at the rear of the cutter head. The blade clearance in the center of the shear
should be set at least .001 closer than the dimension chosen for the ends of the blade.

6. Reposition all protective guards and covers.

Please contact the factory if you have any question regarding this procedure.

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REPLACING/ROTATING BLADES

The blades on the LM Series shears are four edged blades constructed of high carbon,
high chromium tool steel. Top and bottom blades are interchangeable. Upon utilizing all
four edges of you blades, you may return the blades to the factory for re-sharpening or to
a qualified blade re-sharpener, such as a blade manufacturer.

To remove and reposition the blades, the procedure is as follows:

1. DANGER: disconnect the main electrical power source to

the shear.

2. Removal of the hold down assembly (69)

A. DANGER: Never attempt to remove the hold down

assembly without inserting and bottoming out the hold
down compression bolts (1/2” x 6” bolts shipped with the
machine) which are required to contain the spring
pressure of the hold down pads while the assembly is
removed from the shear. Remove the top sheet metal cover

from the top of the hold down, and insert the compression bolts inside
the hole mounts on top of the hold down until each bolt bottoms out.

B. After bottoming out the compression bolts, remove the four hex head

bolts (81) which attach the hold down to the side panels on each end.

C. Use a sling and fork lift to remove the hold down after pulling the

assembly free of the front gib screw space collars located on the side
frames of the shear.

3. Removal of the top blade. CAUTION: Use gloves when handling

the blade to protect your hands.

the upper and lower blades. Loosen the top blade bolts starting at the ends of
the blade working toward the center. Rotate the blade to a new cutting edge
and reversing the procedure, reinsert and snug the bolts working from the
center out to each end.

4. With all bolts in place, securely torque the bolts while insuring that the blade
is properly seated in the machined blade slot of the cutter head by using either
a brass or wood pry bar.

5. Repeat the above procedures similarly to reposition the bottom blade.

6. Use the procedures outlined in the BLADE CLEARANCE section of this

manual to reset the proper baled gap.

Place a wood block wedge between

CAUTION: Upon repositioning

the shear blades, it is imperative that the bottom blade be
adjusted well clear of the top blade before attempting to jog
the cutter head down to make the blade clearance adjustment.

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Otherwise, crashing of the blades could result in severe
damage to the machine.

7. Reposition the hold down assembly.

BACKGAUGE INFORMATION

The LM shear is fitted with a front operated back gauge as standard equipment. The
gauge was installed and calibrated at the factory and shipped intact mounted on the shear.
Inspect the gauge carefully to determine any possible movement or damage in transit.

The gauge has 30 inches of travel. To verify the back gauge was not disturbed during
shipping, rotate the hand wheel bringing the gauge into contact with the bottom blade.
The display should now read zero. If the display has a value other than zero and gauge is
in fact in contact with the bottom blade, the unit must be adjusted.

ADJUSTING the BACKGAUGE

When adjusting the back gauge, first determine that the two upper support shafts (123)
are inserted into the welded collars at the rear of the cutter head at equal amounts. The
factory setting is 1.5 inches from the face of the collar to each of the front two support
brackets (128). Upon verifying this dimension, notice that each support bracket has a hex
head bolt threaded into the body of the bracket. When the gauge is brought in to a zero
reading on the display, the head of these bolts contact the adjusting blocks (127) and
provide for a more definite stop for the readout. To perform the adjustment, bring the
adjusting blocks in contact with the bolts and then adjust the threaded rods (109)
connected to the stop (100) so that the stop is flush against the bottom blade at both ends
of the shear. Be certain to retighten the lock nuts (115) of the threaded rod.

Hold Down Adjustment

The following is the instructions to raise the hold down height to reduce the pressure
(Hold down) on your LM shear:

1. Using the jog mode, depress the jog button until the machine cutter head
reaches the bottom or its lowest position.

2. Disconnect the power to the machine.

3. Remove the sheet metal cover on the top of the hold down.

4. To raise the height of the hold down pad use two 7/8” wrenches unlock the
two nuts that are locked and positioned against the square tube. Turn the
bottom nut against the tube for 1 complete turn. Lock the top nut against the
bottom.

5. Replace the top sheet metal cover to the hold down.

6. Reconnect the power to the machine.

7. Verify the clearance or height has been raised.

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SHEET SUPPORT SYSTEM

1. Single Stroke: When the foot pedal is activated, the sheet support will drop down

and remain down until the cycle is complete and then return to the up position.

2. Continuous Stroke

down and stay down as long as the foot pedal is activated. When the foot pedal is

released the cutter head will return to top of the stroke and the sheet support return to

the up position.

3. Speed of the System: The speed of the sheet support is regulated by the two flow

controls on the sheet support air valve. The pressure to the system is regulated by the

Filter / Regulator unit that the air supply connects to. Generally 80 psi on the

regulator will give consistent operation providing the incoming air supply is 90 psi or

higher (max 150 psi). The incoming air supply should also have a flow rate of at least

5 cfm with a 3 second recovery time.

4. Dump Time: Rear dump sheet support systems generally have this time set to 0

seconds. The sheet support will drop as soon as the cutter head begins its down

stroke.

Front dump sheet support systems have a slight delay (approximately .5 seconds)

before the system drops.

: When the foot pedal is activated, the sheet support will drop

Please consult the factory for adjustments for sheet support system speed.

MAINTENANCE

On a monthly basis, remove the top cover (11) of each side panel and grease the gib
plates (9, 10, 15). This can be best accomplished by jogging the cutter head down to the

extreme down-stroke position, thus exposing a majority of the gib surface. MAKE

SURE THE POWER TO THE MACHINE HAS BEEN TURN OFF
WHEN APPLING LUBRICATES. Also each month, apply grease to the zerk

fitting of the support bearings (53) of the drive linkage shaft (55). Otherwise, periodic
lubrication with a good grade of machine oil to the remaining moving parts such as those
associated with the linkage are of the self-lubricating, oil impregnated composition.
Additionally, the manufactures recommended maintenances schedule for the power unit
of the shear is included in this manual as an appendix.

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