Northern Industrial Tools 998255 User manual

6 CU. FT. CEMENT MIXER
OWNER’S MANUAL
WARNING:
Read carefully and understand all ASSEMBLY AND OPERATION
INSTRUCTIONS before operating. Failure to follow the safety rules and other
basic safety precautions may result in serious personal injury.
Item# 998255

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Thank you very much for choosing a Northern INDUSTRIAL Tools product! For future reference,
please complete the owner’s record below:
Model: _______________ Purchase Date: _______________
Save the receipt, warranty and these instructions. It is important that you read the entire manual
to become familiar with this product before you begin using it.
This machine is designed for certain applications only. The distributor cannot be responsible for
issues arising from modification. We strongly recommend this machine not be modified and/or
used for any application other than that for which it was designed. If you have any questions
relative to a particular application, DO NOT use the machine until you have first contacted the
distributor to determine if it can or should be performed on the product.
For technical questions please call 1-800-222-5381.
INTENDED USE
The Cement Mixer is designed for mixing cement. This particular model is small, efficient, easy to
assemble and transport, making it ideal for both home and jobsite use.
TECHNICAL SPECIFICATIONS
Item Description
Drum Capacity 6 Cubic Feet
Drum Opening 15-7/10"
Motor Input Power: 1 HP
Output Power: 1/2 HP
RPM: 1720
Voltage: 120 VAC @ 60 Hz, 8.7A
Overall Dimensions 57-1/2"L x 30"W x 53-1/2"H
Net Weight 145.5 lbs.
GENERAL SAFETY RULES
WARNING: Read and understand all instructions. Failure to follow all instructions listed
below may result in serious injury.
CAUTION: Do not allow persons to operate or assemble this MINI CEMENT MIXER
until they have read this manual and have developed a thorough understanding of how the
MINI CEMENT MIXER works.
WARNING: The warnings, cautions, and instructions discussed in this instruction
manual cannot cover all possible conditions or situations that could occur. It must be
understood by the operator that common sense and caution are factors which cannot be built into
this product, but must be supplied by the operator.
SAVE THESE INSTRUCTIONS

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WORK AREA
Keep work area clean, free of clutter and well lit. Cluttered and dark work areas can cause
accidents.
Do not use your tool where there is a risk of causing a fire or an explosion; e.g. in the
presence of flammable liquids, gasses, or dust. Power tools create sparks, which may ignite
the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause
you to lose control, so visitors should remain at a safe distance from the work area.
Be aware of all power lines, electrical circuits, water pipes and other mechanical
hazards in your work area, particularly those hazards below the work surface hidden from
the operator's view that may be unintentionally contacted and may cause personal harm or
property damage.
Be alert of your surroundings. Using power tools in confined work areas may put you
dangerously close to cutting tools and rotating parts.
ELECTRICAL SAFETY
WARNING: Always check to ensure the power supply corresponds to the voltage on the
rating plate.
Do not abuse the cord. Never carry a portable tool by its power cord, or yank tool or
extension cords from the receptacle. Keep power and extension cords away from heat, oil,
sharp edges or moving parts. Replace damaged cords immediately. Damaged cords may
cause a fire and increase the risk of electric shock.
Grounded tools must be plugged into an outlet properly installed and grounded in accordance
with all codes and ordinances. Never remove the grounding prong or modify the plug in any
way. Do not use any adapter plugs. Check with a qualified electrician if you are in doubt as to
whether the outlet is properly grounded.
Double insulated electrical motors are equipped with a polarized plug (one blade is wider
than the other). This plug will fit in a polarized outlet only one way. If the plug does not fit fully in
the outlet, reverse the plug. If it still doesn't fit, contact a qualified electrician to install a
polarized outlet. Do not change the plug in any way.
Avoid body contact with grounded surfaces such as pipes, radiators, ranges, and
refrigerators. There is an increase risk of electric shock if your body is grounded.
When operating a power tool outside, use an outdoor extension cord marked "W-A" or
"W." These cords are rated for outdoor use and reduce the risk of electric shock.
Extension Cord Use:
A. Use only 'Listed' extension cords. If used outdoors, they must be marked "For Outdoor
Use." Those cords having 3-prong grounding type plugs and mating receptacles are to be
used with grounded tools.
B. Replace damaged or worn cords immediately.
C. Check the name plate rating of your tool. Use of improper size or gauge of extension cord
may cause unsafe or inefficient operation of your tool. Be sure your extension cord is rated
to allow sufficient current flow to the motor. For the proper wire gauge for your tool, see
chart.

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CHART FOR MINIMUM WIRE SIZE OF EXTENSION CORD:
Nameplate AMPS CORD LENGTH
25' 50' 100' 150'
0-6 18 AWG 16 AWG 16 AWG 14 AWG
6-10 18 AWG 16 AWG 14 AWG 12 AWG
10-12 16 AWG 16 AWG 14 AWG 12 AWG
12-16 14 AWG 12 AWG (NOT RECOMMENDED)
If in doubt, use larger cord.
Be sure to check voltage requirements of the tool to your incoming power source.
Do not expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
Do not let your fingers touch the terminals of plug when installing to or removing from the
outlet.
Ground fault circuit interrupters. If work area is not equipped with a permanently installed
Ground Fault Circuit Interrupter outlet (GFCI), use a plug-in GFCI between power tool or
extension cord and power receptacle.
PERSONAL SAFETY
Stay alert, watch what you are doing and use common sense when operating a power tool.
Do not use a power tool while you are tired or under the influence of drugs, alcohol or
medication. A moment of inattention while operating power tools may result in serious
personal injury.
Dress properly. Do not wear loose clothing, dangling objects, or jewelry. Keep your hair,
clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be
caught in moving parts. Air vents often cover moving parts and should be avoided.
Use safety apparel and equipment. Use safety goggles or safety glasses with side shields
which comply with current national standards, or when needed, a face shield. Use as dust
mask in dusty work conditions. This applies to all persons in the work area. Also use non-skid
safety shoes, hardhat, gloves, dust collection systems, and hearing protection when
appropriate.
Avoid accidental starting. Do not carry the power tool with your finger on the switch.
Ensure the switch is in the off position before plugging tool into power outlet. In the event
of a power failure, while a tool is being used, turn the switch off to prevent surprise starting
when power is restored.
Do not overreach. Keep proper footing and balance at all times.
Remove adjusting keys or wrenches before connecting to the power supply or turning on
the tool. A wrench or key that is left attached to a rotating part of the tool may result in
personal injury.
Never stick your hands and/or tools into the Drum Assembly while the Cement Mixer is in
operation.
MIXER USE AND CARE
Do not force the mixer to perform an operation other than its intended use. Mixers
do a better and safer job when used in the manner for which they are designed. Plan your
work, and use the correct mixer for the job.
Keep hands free from the drum when in operation.
Always operate mixer on a solid, flat, level surface that is capable of supporting the weight
of the mixer and its load.

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Never start or stop the mixer with any material in the drum otherwise the motor will be
damaged.
Never use a mixer with a malfunctioning switch. Any mixer that cannot be controlled with the
switch is dangerous and must be repaired by an authorized service representative before
using.
Disconnect the power from mixer and place the switch in the locked or off position
before servicing, adjusting, installing accessories or attachments, or storing. Such
preventive safety measures reduce the risk of starting the power tool accidentally.
Store idle mixer. When mixer is not in use, store them in a dry, secure place out of the
reach of children. Inspect tools for good working condition prior to storage and before
re-use.
Check mixer for wear and damage frequently. It is recommended that the general
condition of any mixer be examined before it is used. Keep your mixer in good repair by
adopting a program of conscientious repair and maintenance in accordance with the
recommended procedures found in this manual. If any abnormal vibrations or noise occurs,
turn the tool off immediately and have the problem corrected before further use. Have
necessary repairs made by qualified service personnel.
Periodically grease all moving parts lightly.
Keep mixer blades clean. Properly maintained mixing blades are less likely to fail and will
perform the job required. Keep handles dry, clean, and free from oil and grease.
Cleaning and Lubrication. Use only soap and a damp cloth to clean your mixers. Many
household cleaners are harmful to plastics and other insulation. Never let liquid get inside
the motor compartment.
Use only accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one mixer may create a risk of injury when used on
another mixer.
Keep guards in place and in working order.
Never leave mixer running unattended.
Keep drum rotating when filling or emptying the mixer.
When transporting the mixer, disconnect the power cord and make sure the drum is empty of
all material.
UNPACKING:

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ASSEMBLY (Recommend that 2 people assist in assembly)
1. Place Stand (#30) onto Hinge Bracket (#34) so that bolt holes line up as shown in Figure A.
2. Insert Hex Bolts (#26) with Washer (#27) through holes from one side, then Washer (#27)
Lock Nut (#23) from the other side, and tighten with a wrench.
3. Insert Support Bracket (#25) onto Stand (#30) so that bolt holes line up.
4. Insert Hex Bolts (#26) with Washer (#27) through holes from one side, then Washer (#27)
Lock Nut (#23) from the other side, and tighten with a wrench.
5. Place Stand upright as shown in Figure B.
6. Place Wheel (#33) onto Hinge Bracket axle, and slip on the washer (#32) after the wheel.
7. Next insert Pins (#31) into the Hinge Bracket (#34) axle holes, outside each Flat Washer.
That is, the pin should be touching the washer, not the wheel.
8. Bend each side of the Pins outward so they do not fall out. (Figure B)
9. With two people, set the Drum Lower (#8) with attached Support Arm assembly into Stand
assembly so that the Shaft (#35) is on the wheel side and the Iron Tube (#18) is on the
Support Bracket (#25) side of the assembly. (Figure C)
10. Insert Hex Bolts (#59) with Washer through holes from one side, then Washer, Lock Nut from
the other side, and tighten with a wrench.
11. With the help of another person, attach Connector Seal (#6) to the Drum lower (#8), make
sure that the holes in both align. This Connect Seal must be flat on the Drum lower to ensure
a proper seal. (Figure D)
12. Carefully place the Drum Upper (#4) onto the Connector Seal. Make sure that the holes in
both align. (Figure E)
Note: When placing the Drum Upper, align the Mixing Blade mounting holes in the side of the
drums as shown in Figure E. If they are too far away from each other, the Mixing Blades holes
will not match up with the mounting holes on the Drums.
Fig. A
Stand
(
30
)
Bolt M8X70
(
26
)
Su
pp
ort bracket
(
25
)
Washer Φ8
(
27
)
Hin
g
e bracket
(
34
)
Lock Nut M8
(
28
)
Pin
(
31
)
Wheel
(
33
)
Fig. B Fig. C
Iron Tube
(
18
)
Shaft (35)
Bolt &Washer
&Locknut
Bolt &Washer
&Locknut

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13. Move the Connect seal from the inside to make sure the holes of Drum Upper, Connector Seal,
Drum Lower align in a line, insert the bolt (#58) with washer (#57) through the holes and rotate
them by hand. (Figure F)
Note: Make sure that eight screws be in place, and tighten with a wrench.
14. Mount each Mixer blade (#2) inside the assembled drum, the V-shaped bend in the Mixers
should point in the direction of the Drum rotation (clockwise). Insert Hex Bolt (#1) with Washer
(#3) from outside, then washer and Locknut (#5). Tighten with a wrench. (Figure G, H)
15. Insert the handle (#64) into support bracket (#25) hole from one side. Slide Washer (#63)
onto the handle from the other side, insert Pins (#67) into the holes, bend the Pins outward so
it does not fall out. (Figure I)
16. Mount the Degree Adjusting Plate (#19) to the Iron Tube (#18), using two Hex Bolts (#24) with
washer (#27) inserted from the outside, and tighten with a wrench. (Figure J)
Mixer Blade
Mount holes
Drum Upper (4)
Fig. E
Connect Seal (6) Align the holes
(Figure F)
Bolt (58) &Washer (57)
Fig. G Fig. I
Handle (64)
Support bracket (25)
Fig. H
Mixer blade (2)
(Figure J)
Ring (17)
Iron Tube
(
18
)
Rin
g
(
17
)
Locking pin hole
Degree adjusting
plate (19)
Bolt &Washer
&locknut
Fig. D Connect Seal (6)

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17. Attach Degree Adjusting wheel (#20) to Iron Tube (#18) shaft as shown in Figure K:
a. Insert coil spring into the lower hole.
b. While holding the spring in place, slide the wheel over the iron tube.
Note: The M8*25 bolt (#69) usually have been secured in place, this step may need a little
exertion in order to compress the spring sufficient to be able to slip the wheel onto the
Iron Tube. If you can’t compress the coil spring in place, gradually loosen the M8*25 bolt then
try to slip the wheel onto the Iron Tube. Tighten this bolt against the coil spring.
c. Line up the holes in the bracket on the wheel with the hole drilled in the Iron Tube, then
insert the Hex bolt (#23) with flat washer at the bolt head.
Note: You will find it an easier task to line up the holes on one side of bracket only, to begin with.
Enter the bolt, then use that as a pivot, by pushing the wheel IN to square it up, in order to line
up the holes on the other side. When the holes at the opposite side are aligned, tap the bolt
through GENTLY to avoid damaging the threads.
d. Screw the locknut against the bracket, but not so tightly so as to prevent the wheel from
pivoting about the bolt.
Note: The wheel must be allowed to pivot about the bolt so that the lugs on the wheel can be
engaged or disengaged from the slots in the Degree Adjusting Plate.
18. Mount the inner Motor Base Cover and Motor Mount Plate(Figure L, M)
To prepare the Motor (#42) for mounting, remove the Motor from the Inner Motor Base Cover (#39)
by unthreading the two Hex nuts and Hex bolts holding it in place for shipping.
a. Mount the Inner Motor Base Cover (#39) to the Shaft (#35), slide Washers onto two Bolts
(#24), and insert the Bolts through the Motor Base Cover and the Iron Tube Fixture (#15).
Secure with Washers and Lock Nuts.
b. Attach the Motor Mount Plate (#40) to the Inner Motor Base Cover (#39), insert four Bolts
(#37) through the holes in the Fixed plate (#38), Cushion (#62), Motor Base Cover channels.
Thread Locknuts (#55) and washer onto the Bolts, but DO NOT tighten the locknut at this
stage.
Note: The Motor Mount Plate must be adjusted up or down to tighten the V Belt (#61).
Lugs M8*25 bolt
Slots
Coil spring
De
g
ree Ad
j
ustin
g
arm
(
20
)
Degree Adjusting wheel (20)
Fig. K
Coil spring

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19. Mounting the Pulley and Belt(Figure N, O)
a. Clean the Shaft (#35) of all plastic protective material and other debris. Also clean out debris
from Drum Pulley (#49) center hole.
b. Position the Drum Pulley (#49) so that the Set Screw hole (#48) is facing outward. Squarely
push the Pulley center onto the Shaft so that the groove in the Drum Pulley engages the Key
(#47). The Pulley should be flush with the step on the Shaft. Thread the Set Screw (#48)
and tighten in place.
Note: Do not pound the Drum Pulley onto the Shaft. Damage can occur resulting in a loose fit.
c. Place the V Belt(#61) around the Drum Pulley(#49)
20. Mounting the Motor(Figure P)
WARNING: The Motor is attached to the Outer Motor Base Cover (#43) by a power
cable. While installing the Motor, have a helper hold the Cover out of the way, without placing
tension on the power cable.
a. Put the Motor (#42) over the V Belt (#61), make sure motor pulley (#51) is directly under the
Drum Pulley.
b. Allow the motor to drop as far as possible under its own weight in order to tension the drive
belt. Tension is correct when there is approximately 1/4" total deflection at the centre of the
belt run when using moderate thumb pressure.
Note: This step may require adjusting the Motor Mount Plate (#40) up or down.
c. Tighten the mounting bolts progressively ensuring the support plate is parallel to the ground.
This step requires removing the Motor (#42) first.
Note: It usually requires multiple attempts on (step b, step c) to get the right position of Motor
Mount Plate (#40).
Bolt &Washer
Washer &Locknut
Motor Mount Plate (#40)
Inner Motor Base
Cover (#39)
Channels
Bolt &Washer
Washer &Locknut
Cushion
(
62
)
Locknut
(
55
)
Fixed
p
late
(
38
)
Bolt & Washer
Channels
Fig. L Fig. M
Set Screw
(
48
)
Drum Pulle
y
(
49
)
Ke
y
(
47
)
V Belt
(
61
)
Fig. N Fig. O

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d. Secure the Motor, slide Flat Washers on four Bolts (#41), then slide the Bolts up through the
bottom of the Motor Mount Plate and the Motor. Secure in place with locknut.
e. Check if Motor and belt turns true. Hands turn the Drum Pulley (#49) and verify that the
Motor Pulley and Drum Pulley do not rub against any other part, and that the pulleys turn
true. Make adjustments to Motor location as required.
21. Mount the Outer Motor Base Cover (#43) to the Inner Motor Base Cover (#39) using three
Bolts (#46), Washers (#70) and Nuts (#71). Make sure that the power cord from the Motor to
the Switch (#45) does not come in contact with moving parts. (Figure Q)
22. The Cement Mixer assembly is complete. Go back and retighten all screws, nuts, and bolts.
OPERATION
1. Place the Cement Mixer on a solid, even surface capable of supporting the weight of the
machine and all materials placed within it.
2. Connect the Power Cord (#44) to an electrical outlet (or properly rated extension cord) with a
third, ground prong.
3. First start the mixer, and then add material to the Drum. Typical maximum quantities include:
2 gallons water, 3 shovels cement, 15 shovels aggregate rock using a size 3 shovel.
WARNING: Do not attempt to move the Cement Mixer when it is full and/or in operation,
serious personal injury could occur.
4. Adjust the Drum angle by pulling out on the Degree Adjusting Arm (#20), disengaging the
locking pins, and push on Arm until the desired angle is reached. Re-engage the locking pins.
5. Flip the switch (#45) to the “ON” position.
6. Filling and emptying the Drum is best done with the Drum rotating.
WARNING: Never leave the Cement Mixer running while unattended. Do not turn Mixer
Off while full of cement.
7. When finished, flip the Switch “OFF” position, and disconnect the Power Cord.
8. Turn the Drum angle as far down as possible to drain all fluids from Drum.
Motor (42)
Bolt & Washer
&Locknut
Motor base cover mounting
holes (typical of 3)
Switch (45)
Bolt & Washer & Nut
Motor Base Cover (43)
Bolt & Washer & Nut
Fig. P Fig. Q

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MAINTENANCE
WARNING: Make sure this tool is turned off and disconnected from its power source before
attempting any maintenance, cleaning, or inspection.
It is recommended that the general condition of any tool be examined before it is used. Keep
your tools in good repair by adopting a program of conscientious repair and maintenance in
accordance with the recommended procedures found in this manual. If any abnormal vibrations
or noise occurs, turn the tool off immediately and have the problem corrected before further use.
Have necessary repairs made by qualified service personnel.
After use, immediately wash out all debris from the inside and outside of the Cement Mixer.
Keep the motor clean and free of build up.
Do not apply water in or around the Motor Base Cover.
Retighten belt after the every 25 hours of use. The belt should be able to be pressed in no
more than 1/4".
Periodically recheck all nuts, bolts, and screws for tightness.
Lightly grease all moving parts.
Fi
g
.J

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DIAGRAM

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PARTS LIST
Item# Description Qty Item# Description Qty
1 Bolt M10×25 4 40 Motor mount plane 1
2 Mixer Blade 2 41 Bolt M8×20 4
3 Washer Φ10 9 42 Motor 1
4 Drum Upper 1 43 Motor base cover 1
5 Lock Nut M10 4 44 Power cord 1
6 Connector Seal 1 45 Switch 1
7 Bolt M6×12 3 46 Tap Screw M5×10 6
8 Drum lower 1 47 Key C5×35 1
9 Gear ring 1 48 Set Screw M5×10 3
10 Bearing sheath 1 49 Pulley 1
11 Bearing 6206 2 50 Key C5×20 1
12 Ring Φ62 1 51 Pulley 1
13 Bearing 6002 2 52 Gear 1
14 Washer Φ15 1 53 Waterproof washer 2
15 Iron tube fixture 2 54 Bolt M8×25 1
16 Washer Φ38 4 55 Lock Nut M6 4
17 Ring Φ38 4 56 Washer Φ6 8
18 Iron tube 1 57 Big Washer Φ6 8
19 Degree adjusting plate 1 58 Bolt M6×16 8
20 Degree adjusting wheel 1 59 Bolt M8×65 2
21 Lock Nut M10 1 60 Switch plane 1
22 Coil spring 1 61 V Belt 813 1
23 Bolt M10×65 1 62 Cushion 1
24 Bolt M8×25 4 63 Washer Φ22 1
25 Support bracket 1 64 Handle 1
26 Bolt M8×70 4 65 Handgrip cover 1
27 Washer Φ8 28 66 Key C5×25 1
28 Lock Nut M8 14 67 Pin Φ5×40 1
29 Ring Φ30 2 68 Strengthening cap 1
30 Stand 1 69 Washer Φ5 9
31 Pin Φ5×40 3 70 Nut M5 6
32 Washer Φ26 3
33 Wheel 2
34 Hinge bracket 1
35 Shaft 1
36 Ring Φ15 2
37 Bolt M6×65 4
38 Fixed plate 1
39 Inner Motor base cover 1
For replacement parts and technical questions, please call 1-800-222-5381.

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Distributed by
Northern Tool + Equipment Co., Inc.
Burnsville, Minnesota 55306
NorthernTool.com
Made in China
WARNING:
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities
contains chemicals known to the State of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
•lead from lead-based paints
•crystalline silica from bricks and cement and other masonry products
•arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your
exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such
as those dust masks that are specially designed to filter out microscopic particles.