Norton Clipper Pro-Cut BBM307 User manual

BLOCK BUSTER MINI MASONRY SAW
MODELS
BBM307
YBM307
OWNERS MANUAL
A PRODUCT OF NORTON COMPANY

Shown With Dust/Water Collecting Pan/Splash Guard
Shown With Optional Dust/Water Collecting
Pan/Splash Guard &Dust Vacuum System
A PRODUCT OF NORTON COMPANY

3
WARRANTY
Norton warrants to the purchaser that each unit will be free from defects in
materials or workmanship for one hundred eighty (180) days from the original
purchase date from Norton when used for commercial, institutional or
professional use: or for thirty (30) days from the original purchase date from
Norton when used for rental purposes.
The responsibility of Norton under this warranty is limited to replacement or
repair of defective parts at a point designated by it, of such part as shall appear
to us upon inspection at such point, to have been defective in material or
workmanship, with expense for transportation borne by the customer.
In no event shall Norton be liable for consequential or incidental damages
arising out of the failure of any product to operate properly.
Integral units such as gasoline engines, electric motors,batteries, tires,
transmissions, etc., are excluded from this warranty and are subject to the
prime manufacturer's warranty.
This warranty is in lieu of all other warranties, expressed or implied, and all such
other warranties are hereby disclaimed.
Important: Before placing equipment in operation, record the following
information.
MODEL:_________ SERIAL NO.___________
PURCHASE FROM: _____________________
ADDRESS: ____________________________
CITY_______ STATE ______ ZIP ________
TELEPHONE NO. ______________________
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects or
other reproductive harm
WARNING:
Before using this equipment, make sure that the person using it has
read and understands the instructions in this owner’s manual.

BBM307/YBM307
OWNER'S MANUAL
4
Read Owners Manual Before Use
Safety Alert Symbol: Information Following This Symbol Is Very Important.
CONTENTS PAGE
Safety Precautions 5-6
Specifications and Features 7
Items Included 8
Cutting Angle Spring Lock Pin 9
Dust/Water Collection Pan 10
Conveyor Cart Assembly 11
Electric Motor 12
Carbon Brush 13
Air Filter 14
Conveyor Cart Assembly Figure 1 15
Conveyor Cart Assembly Figure 2 16
Frame and Dust/Water Collecting Pan 17
Cutting Table Guide Rails 18
Cutting Table Assembly 19
Splash Guard Assembly 20-21
Electrical System 22
Carbon Brush, Air In-take, and Blade Shaft 23-24
Cutting Head Assembly 25-26
Motor Assembly 27
Blade GuardAssembly 28
Optional Dust/Water Collecting Splash Guard Assembly, Optional Stand 29
Optional Dry Cutting Kit, Optional Wet Cutting Kit 30

5
Use Only Norton Diamond Blades
Safety Precautions
Important! The following safety precautions must always be observed.
Hazard Symbols
Keep all guards in place when operating any piece of equipment
Keep hands, feet, hair, and clothing away from all rotating parts
Never tamper with the governor components of settings to increase the
maximum speed. Severe personal injury and damage to the motor or
equipment can result if operated at speed above maximum. Always obey the
maximum speed rating of blade.
DO NOT LIFT THE SAW BY THE CUTTING HEAD OR HANDLE BAR
Use Approved:
Eye Protection Hearing
Protection
Respiratory
Protection
Head Protection
The BBM307/YBM307 is designed as a masonry (Block, and Brick) saw and is not
designed for non-masonry classified material. Use steel center Diamond Blades
Only with this machine. For best preformance use steel center Diamond
Blades with a soft bond and a low diamond concentration that are specified
for masonry products. The use of blades with hard bonds or high diamond
concentration on this machine may result in damage to the motor. Clean and
replace the air filter as needed. Failure not to clean or replace the air filter may
result in motor damage. Do not use the machine without the air filter in place.

6
1. Before mounting any blade on the saw, the blade should be inspected for any damage
which might have occurred during shipment, handling or previous use.
2. The blade collars and arbors should be cleaned and examined for damage before
mounting the blade.
3. The blade must be properly fitted over the arbor.
4. The blade shaft nut, which is a left-hand thread nut, must be tightened securely against
the outside blade shaft collar.
5. The blade must be operated within the specified maximum operating speed listed on
the blade.
6. If wet cutting submerge the water pump in clean water and open the water control valve to
provide adequate coolant (4 to 6 gallons per minute). Insufficient coolant could result in
severe blade breakage or diamond segment separation.
7. The blade guard must be in place with the blade collar guard closed when the saw
is running.
8. The operator should wear approved eye, hearing, respiratory, and head protection.
9. When starting the saw, the operator should stand away and to the side of the blade.
10. If for any reason the saw should stall in the cut, raise the blade out of the cut and switch the
power off. Check outside blade shaft collar and nut for tightness. Inspect the blade for
damage. Before restarting the saw. Use caution when resuming a cut. Be certain that the
blade is in alignment with the previous cut.
11. During cutting operations, do not exert excess side pressure on the material as a
method of guiding. Do not force the blade into the cut by lowering the blade too fast
or by pushing the cutting table too fast.
You Are Responsible For Your Safety!!!
Machine Lifting Points: Only lift machine by the approved lifting points.
Lift Here
Lift Here

BBM307/YBM307 Specifications
Horse Power 3 HP (2,238 kW) Peak
Volts 115 -volts
Amps 15 A
Hertz (Cycles) 60 Hz
Motor Type Carbon Brush
Bearing Type Heavy Duty Sealed
Blade Shaft Speed 3,600 rpm
Maximum Blade Size 14 (356mm)
Arbor Size 1 (25.4mm)
Maximum Depth of Cut 5 (127mm)
Straight Cut Length 17 (431mm)
Maximum Material Size 8 x 8 x 16
(203mm x 203mm x 406 mm)
Dimensions L x w x H 31-1/2 x 18 -1/2 x 30
(800mm x 470mm x 762mm)
Weight Uncreated 75 lbs (34.1kg) Approx.
Specifications and Features
7
Powerful low amperage motor
with air filter
Ergonomically designed
Clear View Cutting Head
System: Provides increase
operator efficiency, reduce
fatigue, and provides a
unobstructed view of the
work area.
Front and rear handles
for easy transport and
loading.
Lockable heavy duty slide tray with
steel wheels and removal backstop
Rigid all-steel unibody
construction provides the
best weight to strength ratio
of any saw in its class.
Channel flow pan helps to
direct dust and water away
from the operator
Wide open back design easily
accommodates materials up to
8" x 8" x 16”
Arbor cover helps contain dust and
water
Pivoting head with dual springs and Posi-Loc allows
exact blade location when cutting 4" thick, and 8" thick

8
Items Included
The compact BBM307/YM307 Masonry saws are shipped completely assembled and ready for use
except for the diamond blade. Inspect the saw for shipping damage. If any damage is found, contact the
shipper immediately and file a freight claim. The Norton Company is not responsible for any freight
related damages. Remove the saw from the shipping container.
Items Included with the saw:
Item Part Number QTY
Guide-A-Cut
Wrench
Cutting Table
14” Genuine Norton Diamond Blade for Brick and Block
234030
233041
Call 1-800-554-8003
1
1
1
1
• Do not install the blade until it is time to use the saw!
• ANSI regulations prohibit the transportation of any concrete saw
with the blade installed!
235002
Optional Accessories (Purchased Separately)
Optional Accessories Part Number
Stand 235001
Wet Cutting Kit (includes: Water Pump, Hose, Fittings, Valve,
and Splash Guard)
235003
Dry Cutting Kit (includes: Vacuum, Hoses, and Dust Shields) 235004
Extra Air Filter 235035 1

The BBM307/YBM307 Block Buster Mini Masonry saw is designed with three different cutting
heights for jam cutting, a moving head for chop (or plunge cutting), and a moving cart combined
with the moving head for step cutting to help make any cutting task easier.
Before adjusting the cutting height always disconnect the electrical power supply.
To adjust the BBM307’s fixed cutting position, pull up on the Angle Lock Pin (see Figure 1-1:
Angle Lock Pin), move the head to the new position, release the Angle Lock Pin, and rotate the
cutting head up/down until the Angle Lock Pin locks into position (lowest position for cutting thru
bricks, the middle position for cutting medium size material, and the upper position is for cutting
block.) (See figure 1-2: Angle Locking Position).
To operate the BBM307 Block Buster Mini as a chop or plunge saw: pull up on the Angle Lock Pin,
rotate 90 degrees, and release. Now the cutting head can be rotated by pulling up or pushing
down on the cutting head handle. When not in use, always lock the head into one of the
three cutting height positions.
Do not install the blade until it is time to use the saw!
This machine is designed for the use with steel center diamond blades
Lock the cutting head in place before transporting the BBM307
ANSI regulations prohibit the transportation of any concrete saw with the blade installed!
Do not lift the saw by the cutting head. This may result in injury or damage to the machine.
Figure 1-1: Angle Lock Pin Figure 1-2: Angle Locking Position
9
Cutting Angle Spring Lock Pin
Angle Lock Pin
Head Position Application
Fixed Lowest Jam Cutting Bricks
Fixed Middle Jam Cutting Medium Size Bricks
Fixed Upper Jam Cutting Block
Pivoting Chop or Plunge Cutting
Pivoting Head with Moving Table Step Cutting
Cutting Head

10
Figure 2-1: Removing the Rails. Figure 2-2: Remove the Pan
• Do not try to remove the Dust/Water Collecting Pan without first removing the Rails.
• Removing the water pan without following the above assembly procedure will damage
Plastic Dust/water Collecting Pan.
Dust/Water Collection Pan
The Dust/Water Collection Pan is assembled to the machine from the factory. The following
procedure is to remove or to replace the Dust/water Collection Pan Assembly:
1. Remove Conveyor Cart (see page 11 Conveyor Cart Assembly for instructions) and then remove
the four (4) sets of Hardware (Bolt, Lock Washer, and Washer) from each corner of the machine
frame and remove the rails from the frame (see Figure 2-1: Removing the Rails). Note the
orientation of the Hardware and the Rails.
2. Remove the Dust/Water Pan Assembly from the frame (see Figure 2-2: Removing the Pan).
3. Replace the Dust/Water Pan Assembly if required.
4. Replace the Rails (note that the leg with the mounting holes will face towards the outside of
the frame.
5. Replace the Hardware. Snug the operator’s left hand side and fully tighten the operators right
hand side hardware.
6. Place the Conveyor Cart on the rails (see page 11 Conveyor Cart Assembly for instructions).
7. Align the Conveyor Cart to the blade by moving the operators left hand rail.
8. After the conveyor cart is aligned to the blade, tighten the left hand rail.

Figure 3-1: Conveyor Cart Assembly Figure 3-2: Conveyor Removal
Conveyor Cart Assembly
11
The BBM307 Conveyor Cart Assembly is specially designed with the following unique features:
Dust extraction. The rear of the Conveyor Cart is designed to help extract dust out of the back of the
machine when dry cutting
Four heavy duty rolling wheels with bearings, roll smooth and provide for a long life.
Conveyor Cart mounting bracket helps to prevent the Conveyor Cart from falling off the machine
during use or transportation.
Conveyor Cart locking pin, locks the cart so it will not move.
Conveyor Cart Locking Pin:
To lock the Conveyor Cart into position when transporting the machine, roll the Conveyor Cart to the
forward most position (see Figure 3-1 Conveyor Cart Assembly). Then push the lever down and towards
the rail until the Conveyor Cart Locking Pin Engages. The Conveyor Cart may need to be moved
forwards or backwards slightly during this process.
To unlock the Conveyor Cart, reverse the above procedure.
To remove the Conveyor Cart from the machine:
1. Remove the hardware that attaches the Conveyor Cart Mounting Brackets (see Figure 3-2: Conveyor
Cart Removal).
2. Lift the Conveyor Cart off of the rails.
·
·
·
·

Electric Motor
12
The BBM307/YBM307 Block Buster Mini Masonry Saw electrical information:
Motor Specifications:
Voltage: 115-volt
Cycles: 60Hz
Amperage: 15Amp
Horsepower: 3HP Peak
Watts: 2,238 watt
Extension Cords:
Most motor trouble is the result of too small gauge or too long of extension cord. Cords must be one
piece and as short as possible. Cords should be no longer than shown in the following table. The
Norton Construction Products is not responsible for damage to motors due to the use of extension cords
that are too small or too long.
Electrical Supply:
The Block Buster Mini Masonry Saw should be connected to 115-volt 60 Hertz electrical supply with a
minium of a 15 amp circuit. For best results use a 20 amp circuit.
For safety and security concerns the operator should lockout the power switch when the machine is not
in use.
Ground Fault Circuit Interrupt (GFCI)
This machine requires the use of a Ground Fault Circuit Interrupt (GFCI) device.
Generator:
For best results use a generator that has a continuous output that is greater than 4,000 watts (4kW).
Using the machine with a generator that is less than the recommend output can result in motor damage
and is not be covered under warranty.
Wire Gauge
Extension Cord Chart
Maximum Length
12 AWG
10 AWG
8 AWG
25’ (7.6 m)
50’ (15.2 m)
75’ (22.8 m)

Electric Motor
13
The BBM307/YBM307 Block Buster Mini Masonry Saw uses a high horsepower low amperage air over
brush motor.
Replace the brushes when the motor begins to lose power. Brushes typically need to be replaced
During the life of the saw.
Replace the brushes when over 2/3 of their original length is used (when the over all length of the brush
is less than 7/16” (11.1mm). It is normal for the Brushes to wear down.
Brush Replacement:
1. Disconnect the electrical supply
2. Remove the Air Filter.
3. Remove the four (4) Motor Air In-Take Cover mounting screws (see Figure 4-1: Motor Air In-Take
Cover Removal).
4. Remove the Motor Air In-Take from the motor.
5. Use a coin or wide blade screw driver to remove the Carbon Brush Cap. Use care not to damage the
Carbon Brush Cap. Inspect the Cap for damage. If the Cap has any signs of damage replace (see
Figure 4-2 Carbon Brush Removal)
6. Remove the Carbon Brush.
7. Use compressed air to blow any access carbon build up out of the motor.
8. Inspect the inside of the motor by looking into the brush holder for any excessive wear or carbon
Build up.
9. Place the new Carbon Brush into the Carbon Brush Holder.
10. Replace the Carbon Brush Cap and tighten the Cap with a coin or wide blade screw driver. Only
snug the Cap down. Over tightening the Cap can cause damage to the Cap.
11. Reinstall the Motor Air In-Take Cover and re-attach the four mounting screws. Do not over tighten.
12. Clean the Air Filter.
13. Reinstall the Air Filter.
Figure 4-1: Motor Air In-Take Removal Figure 4-2: Carbon Brush Removal
Cutting Head
Brush Cap
Carbon Brush
Motor Air In-Take Cover
Brush Cap
Carbon Brush

Air Filter
14
The BBM307/YBM307 Block Buster Mini Masonry Saw is equipped with a specially designed air filter to
help protect the motor from damage due to dust intake.
For Best Performance:
Clean Air Filter Before Each Use
Inspect Air Filter and Replace Filter if Damaged
Do Not Use the Machine with a Dirty, Damaged, or Missing Air Filter
Reinstall the Filter Before Use
To clean the Air Filter:
1. Carefully remove the Air Filter from the Motor Air In-Take Cover opening. Do not tear or damage the
Filter (see Figure 5-1: Air Filter Location).
2. Clean the air filter by patting, and shaking the dust from the filter. Compressed air can be used to
blow the dust out of the filter.
3. Inspect the filter for damage. Any damaged Air Filter must be replaced before using the machine.
4. Replace the filter into the Motor Air In-Take Cover.
5. Check to see if the Air Filter is installed properly. The Air Filter should fill the opening in the front of the
Air In-Take Cover and should completely fill the filter cavity.
To replace the Air Filter:
1. Carefully remove the old Air Filter from the Motor Air In-Take Cover opening. NOTE: Pull the Air Filter
thru the opening in the front of the Motor Air In-Take Cover.
2. Inspect the new Air Filter for damage.
3. Place the new Air Filter into the Motor Air In-Take Cover.
4. The Air Filter should fill the opening in the front of the Air In-Take Cover and should completely fill the
filter cavity.
Using the machine with a dirty, damaged, or missing Air Filter will result in motor damage and is not
covered under warranty.
·
·
·
·
Air Filter
Location
Figure 5-1: Air Filter Location

15
Conveyor Cart Assembly (part number: 235002) Figure - 1
Item Description Part Number
3
4
5
1
2
6
7
8
9
Screw M8 x 45 1.25 DIN933 (qty required= 2)
Wheel U Shape (2 pcs./set)
Conveyor Cart Casting (Casting Only)
Wheels Flat (set of 2)
Screw M8 x 40 1.25 DIN933 (qty required= 2)
Ruler Guide
Washer M8 DIN125 Flat (qty required= 4)
Washer Lock M8 DIN127B (qty required= 4)
Screw M8 x 20 1.25 DIN933 (qty required= 4)
235005
235006
235007
235008
235009
235010
232110
235012
235013

16
Conveyor Cart Assembly Figure - 2
Item Description Part Number
1
2
3
4
5
6
7
8
9
10
11
12
Wheel Flat (2 pcs./set)
Lock Nut
Spring Tension for Locking Pin
Lock Pin
Scr M6 x 30 1.0 DIN933 (qty required= 1)
Washer Lock M6 DIN127B (qty required= 1)
Washer Lock M6 DIN127B (qty required= 1)
Spring Tension for Table Locking Bracket
Bracket Table Locking
Scr M6 x 10 1.0 DIN933 (qty required= 1)
Washer Lock M6 DIN127B (qty required= 1)
Wheel U Shape (2pcs./set)
Washer M6 DIN125 (qty required= 1)
13
235008
235014
235015
235016
235017
235018
235019
235018
235021
235022
235018
235024
235006

17
Frame and Dust/Water Collecting Pan
Item Description Part Number
1
2
Frame BBM
Dust/Water Collecting Pan
235025
235026

18
Cutting Table Guide Rails
Item Description Part Number
1
2
3
4
5
6
Scr M8 x 20 1.25 DIN933 (qty required= 4)
Washer Lock M8 DIN127B (qty required= 4)
Washer M8 DIN125 Flat (qty required=4)
Rail (set of 2)
Dust/Water Collecting Pan
Frame BBM
235013
235012
235029
235030
235026
235025

19
Cutting Table Assembly
Item Description Part Number
1
2
3
4
5
Scr M8 x 16 1.25 DIN933 (qty required= 4)
Washer Lock M8 DIN127B (qty required= 4)
Washer M8 DIN125 Flat (qty required= 4)
Cutting Table Position Bracket (qty required= 2)
Conveyor Cart Complete with Wheels
235031
235012
232110
235034
235002

20
Optional Splash Guard Assembly NOTE: All Items On This Page Are Optional
Item Description Part Number
1
2
3
4
5
Bracket “U” Shape Small
Dust/Water Collecting Plastic Pan
Rubber Seal
Bracket “U” Shaped Large
Dust/Water Splash Guard w/Hardware
235035
235026
235036
235037
235095
6
7
8
Continue on page 21...
Water Tub Blade Guard (set of 2) 235096
Fit Hose "Y" BBM/YBM307 235097
Bracket Mount Water System BBM/YBM307 235098
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