Craftsman 320 Series User manual

Owner’s Manual
Green Rotary Laser Level
Model No.
320. XXXXX
CAUTION: Before using this product, read this
manual and follow all its Safety Rules and
Operating Instructions.
•Safety
•Operation
•Maintenance
•Trouble shooting
Sears, Roebuck and Co., Hoffman Estates, IL 60179, USA
www.craftsman.com

2
TABLE OF CONTENTS
Warranty………………………………………………........….....…….....
Safety Instructions……………………………………….….……..…......
Description……………………………………………………..................
Operation………………………………………………….............………
Application...........................................................................................
Maintenance…………………………………………………...................
Trouble Shooting…………………………………………….........………
Service Numbers…………………………………………….........………
Page 2
Page 3-4
Page 4-6
Page 6-16
Page 16-17
Page 17-18
Page 18-19
Back Cove
FULL ONE YEAR WARRANTY ON CRAFTSMAN GREEN ROTARY LASER
LEVEL If this CRAFTSMAN digital laser level fails to give complete satisfaction
within one year from the date of purchase, RETURN IT TO ANY SEARS STORE
OR PARTS & REPAIR CENTRE OR OTHER CRAFTSMAN OUTLET IN THE
UNITED STATES FOR FREE REPAIR(or replacement if repair proves
impossible)
If this CRAFTSMAN green rotary laser level is used for commercial or rental
purposes, this warranty applies for only 90 days from the date of purchase.
This warranty gives you specific legal rights, and you may also have other rights
which vary from state to state.
Sears, Roebuck and Co., Hoffman Estates, IL 60179
Contents
Green rotary laser level, Detector, Remote control, Wall mount base, Detector
mounting base, AC/DC adapter, Green laser enhancing safety glasses.
SAVE THESE INSTRUCTIONS!
READ ALL INSTRUCTIONS!

3
SAFETY INSRUCTION
WARNING: BE SURE to read and understand all instruction in this manual
before using this green rotary laser level. Failure to follow all instructions may result in
hazardous radiation exposure, electric shock, and/or bodily injury.
CAUTION: Use of controls or adjustments or performance of procedures other
than those specified herein, may result in hazardous radiation exposure.
CAUTION: The use of optical instrument with this product will increase eye
hazard.
IMPORTANT: The following labels are on your tool. They indicate where the laser
light is emitted.
ALWAYS BE AWARE of the
emission point locations when using
the green rotary laser level.
ALWAYS MAKE SURE that any
bystanders in the vicinity of use are made aware of the
dangers of looking directly into the laser.
WARNING! LASER LIGHT. LASER RADIATION.
Avoid Direct Eye Exposure. Do Not Stare into beam.
1. DO NOT remove or deface any product labels. Removing
product labels increases the risk of exposure to laser
radiation.
2. DO NOT stare directly at the laser beam or project the laser beam directly into the
eyes of others. Serious eye injury could result.
3. DO NOT place the digital laser level in a position that may cause anyone to stare
into the laser beam intentionally or unintentionally. Serious eye injury could result.
4. DO NOT use any magnifying optical tools such as, but not limited to telescopes or
transits to view the laser beam. Serious eye injury could result.
5. DO NOT operate the green rotary laser level around children or allow children to
operate the tool. Serious eye injury could result.
6. ALWAYS turn the green rotary laser level “OFF” when not in use. Leaving the tool
“ON” increases the risk of someone inadvertently staring into the laser beam.
7. DO NOT operate the green rotary laser level in combustible areas such as in the
presence of flammable liquids, gases or dust.
8. When using any of the base plates, ALWAYS check to be sure that the tool is

4
SAFETY INSTRUCTION cont.
securely mounted on the base. Damage to the tool and/or serious injury to the
user could result if the tool falls.
9. ALWAYS use only the accessories that are recommended by Sears for use with
this product. Use of accessories that have been designed for use with other laser
tools could result in serious injury.
10. DO NOT use this green rotary laser level for any purpose other than those
outlined in this manual. This could result in serious injury.
11. DO NOT leave the green rotary laser level “ON” unattended.
12. DO NOT attempt to repair or disassemble the green rotary laser level. If
unqualified persons attempt to repair this laser product, serious injury may result.
Any repair required on this laser product should be performed by authorized
service center personnel.
13. Before plugging in the tool, BE SURE that the outlet voltage supplied is same as
the voltage marked on the tool's power adapter.
14. DO NOT expose power adapter to rain or wet conditions. Water entering the
adapter will increase the risk of electric shock.
15. When operating the power adapter outside, ALWAYS use an outdoor extension
cord marked “W-A” or “W”. These cords are rated for outdoor use and reduce the
risk of electric shock.
16. CAUTION! to reduce the risk of electric shock, use the tool only in dry location.
DESCRIPTION
KNOW YOUR GREEN ROTARY LASER LEVEL (See Fig.1 & Fig.2)
This Craftsman green rotary laser level is a highly versatile tool. It can be hand-held,
wall-mounted (on the wall-mount base included) or leveled on a horizontal surface or
tripod stand (sold separately). It projects a bright pulse green laser ‘dot’ that forms a
line horizontally or vertical dimension in a 360°complete circle. As a 2-beam level, it
can be used to accurately determine square alignment such as when laying concrete
foundations, “squaring off” a deck or porch and when aligning fence and rail
constructions.
This green rotary laser level is easy to use in many applications from simple home
decorating projects to home construction. It will project a level horizontal or vertical
‘line’ that is accurate to ±1/4-inch at 100 feet. (Recommended usable range is 50 feet)

5
Use the remote control you can conveniently operate your rotary laser when you do
some layout far away within 100 feet. The green laser detector can help you easily
find the laser position within 200 feet even in bright surrounding.
Fig.1
Fig. 2
Wall mount base
Detector mounting base
Laser enhancing
safety glasses
Laser Detector Remote
control
AC/DC
adapter
Side base
4.5V AC/DC
adapter hole
5/8” mounting
hole
Battery
com
p
artment
Push button
Laser aperture
Laser aperture
Y vial
X vial
Z vial
Operation
panel
Level base
Y&Z wheel
“X” wheel
Power bar
indicator
Soft handle

6
TECHNICAL SPECIFICATIONS
Recommended Use Indoors
Laser Diode Type Green Laser Diode 522-542nm
Laser Class Class IIIa, power output <5mW
Battery
3pcs1.5V “D” batteries for rotary laser level, 1pc 12V
“23A” battery for remote control and 1pc 9V “6LR61”
battery for detector. (all the batteries are not
included)
Working range of laser Maximum 100ft. (30m) without detector, depending
upon light conditions
Maximum 200ft. (60m) with detector
Working range of remote control 100 ft. (30m)
Optimum Operating
Temperature Range 32°F to 104°F (0°C to +40°C)
Accuracy +/-1/4-inch at 100 feet
weight ???
OPERATION
To install batteries for the green rotary laser level (See fig.3)
This green rotary laser level uses three”D” 1.5V batteries. (Sold separately)
Fig.3
1. Press the “Push” button to take out
the battery compartment.
2. Install three new “D” size alkaline
batteries according to the polarity
indicators inside the battery
compartment.
3. Fix the battery compartment into the
tool and push it securely in place.
CAUTION! When fix the battery
compartment into the tool, always MAKE
SURE it has been locked securely.
Damage to the case and/or serious injury
to the user could result if it drops out.
Push to
open

7
To connect AC/DC adapter to the tool
Fig. 4
The laser level can also be power supplied with
AC/DC adapter besides batteries.
1. Insert the connecting plug into the adapter
hole which locates in the rear of the level as
Fig.4 shown.
2. Plug the AC/DC adapter into the correct
mains supply (120V, 60Hz)
CAUTION! Whenever connect the adapter to
the mains supply, always check if the voltage is
120V, 60Hz. Damage to the adapter or the tool
and/or serious injury to the user could result if
connecting to the other voltage of mains supply.
To turn on/off the rotary laser (see Fig. 5)
Press the Power button to turn on the level; the bright green laser beam will light. The
backlights of the vials will also be light up for easier visibility when leveling or
calibrating the laser tool. To turn off the level, press the button again, the backlights of
the vials will wink twice quickly before shutting off.
If the laser is not operated for rotating or chalk line for one hour after it is turned on, it
will automatically turn to the “Sleeping mode” to save the electricity. The laser will be
shut off temporarily, and the backlights of the vials will flash once each two seconds to
remind you that the tool has not been fully shut off. You can wake up the level within
two hours by pressing any of the buttons on the tool except “the power button” or
using remote control. After two hours of time, the tool will automatically shut off totally.
You can press the power button on the tool to turn on the rotary laser again.
WARNING: When turning ON the Rotary Laser Level, ALWAYS be aware of
protecting the eyes of yourself and those around you. NEVER point the green laser at
anyone’s face, including your own.

8
Power bar indicator:
The indictor has three LEDs for indicating battery capacity; press the “POWER BAR”
button, the LEDs will be light. It will extinguish automatically in about five seconds. All
the LEDs light up showing the battery has full capacity. The rightest LED begins to
wink showing low battery; it reminds you of replacing batteries or powering it with
AC/DC adapter.
Using the Laser-Enhancing Glasses Provided
This green laser level includes a pair of standard safety glasses that are made of a
laser-light enhancing material. The purpose of these glasses is to improve the viewing
of the tool’s laser line.
WARNING: These glasses WILL NOT protect the eyes from damage that
could result from looking directly into the laser projection.
Adjustment of X&Y wheels to center the bubbles
To level the green rotary laser level, operate as
following instructions:
1. If the Green rotary laser Level is in horizontal
position, adjust the “X”&”Y” wheels. The “X” wheel
controls the X bubble vial, and “Y” wheel control Y
bubble vial. Adjust the two wheels to make sure the
Fig.5
1. Power button: turn on/off the tool.
2. Rotation button: adjust the
rotation speed.
3. Chalk line button: adjust the
length of chalk line.
4. Left button: move chalk line or
laser dot to left position.
5. Right button: move chalk line or
laser dot to right position.
6. Power bar indicator: show battery
capacity.
7. Power bar button: turn on/off the
Power bar indicator
Fig.6
4
O
p
eration
p
anel
1
2
3
5
6
7

9
X and Y bubbles are in the centre of each vial. (Fig6)
2. If the Green rotary laser level is in vertical position, adjust the “Y” wheel. The “Y”
wheel controls the Z bubble vial. Adjust the “Y” wheel to make sure the bubble of Z
vial is in the centre of the vial.
NOTE: The Green rotary laser level can be mounted on a tripod (sold separately) or
mounted on the wall mount base by using thread holes located on level base plate or
side base plate.
Level the mounting plate on the tripod base as closely as possible before mounting
the Green rotary laser level. After mounting and securing the level to the tripod base
plate, perform steps 1 and 2 above to level the tool to its new position.
Marking a series of level points
1. Adjust the X&Y wheels to center the bubble of the vials.
2. Turn on the laser
3. Align the laser beam to your target by pressing the left arrow button or right arrow
button.
The tool can be used of marking a series of points either in the horizontal or vertical
directions.
Adjusting the laser rotating speed
1. Place the Green rotary laser level on a horizontal surface or vertical position or on
a tripod stand (sold separately).
2. Level the tool.
3. Press the power button to turn on the level.
4. Press the rotation button once for “fast” speed; twice for” medium” speed; third
time for “slow” speed; or fourth time to stop rotation.
You can choose different speeds depending on different work surroundings. Selecting
the best scan speed for your working
conditions and job requirements gives you a
highly visible level reference line.
Making a chalk line (see Fig.7)
1. Place the Green rotary laser level on a
horizontal surface or on a tripod stand (sold
separately).
2. Level the tool.
Fig.7

10
3. Press the power button to turn on the level.
4. Press the chalk line button to project a chalk line. Press once to project a longest
chalk line; twice to project a medium chalk line and three times to project a shortest
chalk line.
5. Align the laser beam to your target by pressing the left or right button.
You can get the chalk line either in the horizontal or vertical directions. Press the left
or right button to remove the projecting direction of the chalk line- you do not need to
move the tool and re-level it.
Using the remote control (see fig.8)
Description
The wireless remote control can operate your rotary level within a maximum distance
of 100 feet; the function of buttons on remote control is same as the buttons in
operation panel of the level except for the power button.
Fig.8
1. LED indicator
2. Power button.
3. Rotation button
4. Chalk line button
5. Left button
6. Right button
Power button of the rotary laser level: when the level is power on, push it to turn off
the level; the backlights of the vials will flash twice quickly showing all the circuits are
shut off wholly. Now the remote can not control the tool. To operate the remote control,
turn on the tool first.
Power button of the remote control: when the green rotary laser level is powered on,
push it to make the level enter sleeping mode, at this time the backlights of the vials
will flash once each two seconds to remind you that the tool has not been fully shut off.
You can wake up the level within two hours with remote control after you select “Sleep
mode”. After two hours of time, the tool will automatically shut off totally. Then the
remote can not control the tool. To operate the remote control, turn on the tool with the
power button of the level first.
1
2
3
4
6
5

11
To install battery for the remote control (See fig.9)
The remote control uses one piece of”23A 12V” battery. (Sold separately)
Fig. 9
1. Open the battery cover.
2. Install one “23A” 12V battery（sold
separately）, be sure the polarity (+/-)
is correct!
3. Close the cover and make sure it locks
securely in place.
Using the green laser detector
The green laser detector is designed to find the position of the green laser line within a
maximum range of 200 feet when the laser is hard to see. It can not locate the red
laser line, so do not use the tool to detect it.
Description
Fig.10
1. Receiving window
2. LCD
3. Power button
4. Coarse/Fine detection button
5. buzzer button
6. Lineation slot
7. Mounting hole (1/4”)
8. Battery compartment
9. Distance indicator
1. Receiving window: receive the laser signals
2. LCD: indicate the detection result and the position of the laser line. There are two
LCD on the front and back of the detector for conveniently viewing; they have the
same displaying when detecting the laser.
1
2 3
4
5
6 6
2
6
7
8
9
6

12
3. Power button: turn on/off the detector.
4. Coarse/Fine detection button: coarsely detect laser position or accurately detect
laser position.
5. Buzzer button: Turn on/off buzzer.
6. Lineation slot: for marking target line
7. Mounting hole (1/4”): for installation on the mounting base or on a tripod (sold
separately).
8. Battery compartment: for battery installation.
9. Distance indicator: it shows the lineation slot is 2 inches to the top of the detector.
To install battery for the detector
Fig. 11
1. Open the battery compartment cover.
2. Install one “6LR61” 9V battery, be
sure the polarity (+/-) is correct!
3. Close the battery compartment cover
in place.
Locating the green laser line with this detector
NOTE: Always keep the instrument stable and level when detecting.
1. Press the power button to turn the unit on. The LCD display will illuminate
detection indicator and sound indicator as shown in Fig.12 (a), and it is ready for
use.
Fig. 12
(a) Coarse (b) Medium (c) Fine
Fig. 13
(a) (b) (c) (d)
2. Move the detector vertically up and down, if the laser is in the detection area, the
detection indicator will appear on the LCD (as figure 13 (a) (b) (c) shown) and the
buzzer will sound discontinuously, it tells you the direction you should move and
how close the laser line is to the lineation slot. The downward arrow shows the

13
laser line is under the lineation slot, you should move downwards to close and
match the laser line. The upward arrow tells you to move the tool upwards.
3. If the laser line is detected aligned with the lineation slot, a black line will appear
on the center of the LCD and the buzzer will sound continuously. It tells you the
position of the laser line is.
4. To accurately locate the position of the laser line, you can push the Coarse/Fine
detection button to choose a fine detection mode, as figure 12(b) and 12(c)
shown, more narrow of the two lines means more accurate of the detection.
Repeat step 2 and 3 to locate the laser line.
5. When the laser line is located, you can mark this position with pencil through
either side of the lineation slot.
Detector mounting base
Description
Fig.14
1. Tightening knob: used for fixing the
detector to vertical pillar tightly.
2. Release button: it locates on the both
sides of the quick clamp; push the
buttons to slide the quick clamp.
3. Quick clamp: slide it to quickly clamp
or unclamp
4. 1/4” Mounting thread screw: Used for
fixing detector.
5. Round vial: indicate if the base is
vertical and level.
Using the detector mount base
Use the special detector mount base; you can easily fix the detector on a vertical pillar
for convenient use.
1. Inert the 1/4” mounting thread screw (4) into the 1/4” mounting hole at the back of
the detector, tighten the screw to fix the detector securely as Fig.15.
2. Press the two release buttons at the same time to slide the quick clamp and fix on
the vertical pillar as Fig.16.
3. Turn the tightening screw clockwise to keep the clamp securely fixed with the
pillar.
1 3 4
5
2

14
4. To get accurate detection, make sure the bubble of the round vial in the middle of
the circle mark.
CAUTION! Whenever use the mount base to secure the detector on a vertical
pillar, BE SURE the detector is connected tightly and the base is clamped firmly.
Fig. 15
Fig. 16
Wall mount base for the green rotary laser level
Description
Fig.17
1. Trough - Used for attaching the mount
base to beams on wall.
2. Lock screw - Used for fixing the mount
base to beams on wall.
3. Mounting hole - Used for hanging the
base from a nail or screw on a wall
4. Secure screw - Used for fixing the
platform securely.
5. Handle – Quick release or clamp of
the platform.
6. Inch/Centimeter scale
7. Platform pivots – Used for easy
storage of wall mount.
8. 5/8’’ mounting thread screw – Used
for fixing rotary laser on the base
9. Balance screw – Used for adjusting
the balance of the base.
10. Platform – Used for support of the
rotary laser.
Using the wall mount base
3
10
6
9
7
1
8
5
4
2
2

15
The wall mount base can be hung from nails or screws on a wall or clamped on a
beam. By using the wall mount base, you can easily adjust the height and direction of
the laser to your reference object.
• Hang from nails or screws:
The base has three mounting holes for safety hanging. To ensure firmly hanging,
always use three screws or nails and make sure these screws or nails have been
firmly pinned up in the wall.
• Clamp on a level beam
The base can only be attached on “－” level beam, do not try to attach on a vertical
beam.
1. Turn the four lock screws (2) counterclockwise, as fig.18 shown; attach the wall
mount base to a level beam, make sure the beam is fixed in the full inner position of
the trough (1)
2. Turn the four lock screws clockwise to secure the clamp. The four rubber blocks
can protect the beam from clamping damage.
3. Adjust the balance screw (9) to make the rubber support against the wall, ensure
the platform is approximately level, as fig.19 shown.
Fig. 18 Fig. 19
• Mount the rotary laser on the wall mount base
1. Align the 5/8” screw of the platform with the screw hole of the tool in the bottom
base or side base.
2. Adjust the direction of the tool to your reference object.
3. Turn the screw clockwise to secure the tool on the base as fig.20 shown.
CAUTION! Whenever use the wall mount base to secure the green rotary laser
on the beam, BE SURE to place the tool on the base carefully, securing it with your
hands at all time, once you are sure the tool is fixed firmly on the base with the screw
and the base is fastened on the beam, you can remove your hands safely.

16
• Adjust the laser height
1. Support the base of the platform with one hand to hold the tool
2. Pull the handle upwards to loose it as fig.19 shown.
3. Adjust the height of the platform to your desired position; the adjustable platform
height is up to 7 1/2”.
4. Pull the handle downwards to lock the platform. To fix the platform firmly, you can
tighten the secure screw clockwise as fig.21 shown.
Fig.20
Fig.21
APPLICATIONS
Using the green rotary laser level
This level can be easily used in several ways. It can be hand-held for point marking
and simple alignment, placed on a level surface, mounted on the wall mount base or
on a tripod (sold separately) to project a pulsing dot “chalk line” as a horizontal level
line or vertical plumb line. Be sure re-leveling (re-calibrating) the rotary laser level
every time you change its position.
Working with obstructions and user
interference
Figure 22 illustrates the nature of the laser
“line” projected from the rotary laser level. It
is actually a “dot” of laser light that is
projected as a pulse. This is important
because obstructions and user interference
that takes place in front of the device WILL
Fig. 22

17
NOT affect the laser line projected on either side of the user or obstruction.
Referencing and Leveling across multiple adjacent surfaces
The rotary laser level’s ‘dot of light’ is also useful when working with two or more
adjacent surfaces.
Fig.23
Fig.24
Fig.23 illustrates its use in aligning electrical outlet positions on stud work with two
adjoining walls.
Fig.24 illustrates pictures being aligned on multiple room walls.
MAINTENANCE
This green rotary laser level has been designed to be a low-maintenance tool.
However, in order to maintain its performance, you must ALWAYS follow these
simple directions.
1. ALWAYS handle the tool with care. Treat it as the fine optical device it is, and as
you would treat a camera or binoculars.
2. AVOID exposing the tool to shock, continuous vibration or extreme hot or cold
temperature.
3. ALWAYS store the tool indoors. When not in use, ALWAYS store the tool in its
protective case.
4. After you have finished using the tool, ALWAYS make sure that the tool has been
turned off.
5. ALWAYS keep the tool free of dust and liquids. If needed, ONLY use a soft cloth or
cotton swab and glass cleaner to clean the laser emitting window.
6. ALWAYS clean and thoroughly dry the tool after each use.
7. Check the batteries regularly to avoid deterioration. ALWAYS remove the batteries
from the tool, if it is not going to be used for an extended period of time.

18
8. ALWAYS replace the batteries when the power bar indicator goes out.
9. DO NOT disassemble this green rotary laser level. This will not only void the
warranty, but could expose the user to hazardous radiation exposure.
10. DO NOT attempt to change any part of the laser lens.
11. Tool service MUST BE performed only by a Sears Parts and Repair Center.
Service or maintenance performed by unqualified personnel could result a risk of
injury.
TROUBLE SHOOTING
PROBLEM CAUSE SOLUTION
Laser dot/line
projected is
weak, hard to
see
1. Low voltage of the batteries
2. The tool is out of the
operating temperature range.
3. The tool is too far from the
target.
4. Working condition is too
bright.
1. Replace with new batteries
2. Make sure the tool operating
temperature is within 32°F to
104°F
3. Get the tool closer to the
target.
4. Use laser enhancing glasses
and green laser detector to locate
the laser position.
Laser dot/line is
not projected
1. The tool is not turned on
2. The tool has automatically
entered into “sleeping mode”
with a long time of no
operation with it.
3. The tool has automatically
shut off with a long time of no
operation with it.
4. The tool is out of the
operating temperature range.
1. Check to be sure the tool is
turned on.
2. Press any of the buttons to
active the tool except power
button.
3. Press the power button of the
tool to turn it on again.
4. Make sure the tool operating
temperature is within 32°F to
104°F
The tool can not
be calibrated to
level
The surface where the tool is
placed is very uneven Place the tool on a approximate horizontal surface.
Laser dot/line
projected is not
level
1. The X and Y bubbles are
not in the centre of vials
2. The Z bubble is not in the
centre of vial
3. The rotary laser level is
moved to a new position
1. Adjust the “X” and”Y” wheels to
make sure the X and Y bubbles
are in the centre of vials.
2. Adjust the “Y” wheels to make
sure the Z bubble is in the centre
of the vial.
3. Adjust the “X” and “Y” wheels
to re-level the tool.

19
Detector can not
find the laser
1. It detects a red laser line
2. The detector is out of its
working range
3. Low voltage of the battery
1. This detector can only detect
green laser.
2. Make sure the distance
between tool and detector does
not exceed 200 feet.
3. Change with a new battery
The remote
control can not
operate the tool
1. The tool is shut off wholly
2. Low voltage of the battery
3. The remote control is out of
its working range
1. Press the power button on the
tool first, and then use the remote
control to operate it.
2. Change with a new battery
3. Make sure the distance
between tool and remote control
does not exceed 100 feet.
AC/DC adapter
can not provide
electricity for the
rotary laser
1. Weak connection of the
plugs
2. The mains supply is power
cut
1. Make sure the AC/DC adapter
is connected well with the tool
and the socket of mains supply.
2. Operate the tool with batteries.