Master Prep
OWNER’S MANUAL
Model: QB900W 30
COPYRIGHT © 2009 EURO-PRO OPERATING LLC
CLEANING & MAINTENANCE
GETTING TO KNOW YOUR NINJA MASTER PREP
CAUTION: Make sure that the power head is unplugged from power source
before inserting or removing any attachments and before
cleaning.
Cleaning
Trouble Shooting
Motor doesn't start or blades don't
rotate:
• Do NOT immerse the power head into
water or any other liquid. Clean with a
damp sponge and cloth and wipe dry.
• The master prep pitcher, master prep
bowl and the chopping blades may be
cleaned in the upper basket of the
dishwasher.
• Use extreme caution when cleaning
the chopping blades as the blades are
very sharp.
• Check that the plug is securely
inserted into the electrical outlet.
Food is unevenly chopped:
• Either you are chopping too much food
at one time, or the pieces are not small
enough. Try cutting the food into
smaller pieces of even size and
processing smaller amounts per batch.
• The splash guards and the storage
lids, may be washed in upper basket of
the dishwasher.
Food is chopped too fine or is too
watery:
• The food has been over processed.
Use brief pulses or process for shorter
time. Let blades stop completely
between pulses.
Hints & Tips:
• The double chopping blades can be
used for chopping meat, fish,
vegetables, cheese, etc.
Food collects on splash guard/safety
cover or on the sides of the master
prep pitcher or master prep bowl:
• You may be processing too much food.
Turn the machine off. When the
blades stop rotating, remove the power
head and the splash guard. Remove
some of the food being processed.
• For finer chopping, increase the
length of time you process.
• For coarser chopping, use the pulse
button for a few seconds and monitor
food texture.
• Pre-cut larger pieces to make them fit
into the master prep bowl. When
chopping hard foods (e.g. meat,
cheese) cut into 1-inch cubes.
1. Bowl Splash Guard
2. Upper Blade
3. Lower Blade
4. Master Prep Bowl
5. Spindle Pin
9. Pitcher Storage Lid
10. Pouring Spout
11. Pitcher Splash Guard
12. Upper Blade
13. Lower Blade
6. On/Off Pulse Button
7. Power Head
8. Bowl Storage Lid
14. Master Prep Pitcher
15. Spindle Pin
16. Power Cord (not shown)
Technical Specifications
Voltage:
120V., 60Hz.
Power:
400 Watts
Pitcher Capacity:
Bowl Capacity:
48 ounces (6 cups)
16 ounces (2 cups)
*Illustrations may differ from actual product
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OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
The Ninja Master Prep is an indispensable kitchen tool that is perfect for blending,
chopping, mixing or pureeing when preparing your favorite recipes. For best results, be
sure to carefully read all the instructions contained in the manual before using this
appliance.
Using the Master Prep Bowl
CAUTION: Blades are sharp! Use
extreme caution when handling the
blades. Always hold them by the shaft.
IMPORTANT: Never run the appliance
empty.
1. Place the master prep bowl on a clean,
dry, level surface.
2. Holding the lower blade by the shaft,
place it over the spindle pin inside the
master prep bowl. (Fig. 6)
NOTE: Do not add more than 2 cups dry
or 1 cup liquid ingredients as this will
strain the motor and may cause overflow.
5. Place the power head on the master
prep bowl. (Fig. 9)
3. Add the ingredients to be processed
into the master prep pitcher.
4. Place the pitcher splash guard onto
the top of the master prep pitcher.
(Fig. 4)
5. Place the power head on top of the
pitcher splash guard making sure
that it is securely in place. (Fig. 5)
Do not attempt to operate the
appliance without the safety splash
guard in place.
400 Watt Power Head
The 400 watt power head operates on
120V., 60 Hz. electrical power. Never
allow the power head to become wet
when plugged into an electrical outlet.
WARNING: The power head should
never be immersed in water or any
other liquid.
CAUTION: Make sure that the power
head is unplugged from the electrical
outlet and that the blades have stopped
turning before attaching or removing
any accessory.
shaft
Fig. 9
spindle
6. Plug the power cord into the electrical
outlet.
Using the Master Prep Pitcher
CAUTION: Blades are sharp! Use
extreme caution when handling the
blades. Always hold them by the
hub.
IMPORTANT: Never run the
appliance empty.
1. Place the master prep pitcher on a
clean, dry, level surface.
2. Holding the lower blade by the shaft,
place it onto the spindle pin inside
the master prep pitcher and then
carefully slide the upper blade onto
the shaft of the lower blade. Make
sure that the upper blade slides
down into the slots of the lower
blade shaft. (Fig. 1, Fig. 2) Make
sure that when you are inserting the
upper blade, the blades are on the
bottom.
7. To start the appliance, press on the
On/Off Pulse button located on the
top of the power head. To stop the
appliance, remove your fingers from
the On/Off Pulse button. In order to
obtain a better quality of chopping,
operate the appliance by using the
“pulse” method. If the ingredients
stick to the side of the master prep
bowl, stop the appliance, remove the
power head and the splash guard.
Use a spatula to dislodge the pieces
and then replace the splash guard
and the power head. Continue
processing.
NOTE: Do not operate the appliance
continuously for more than 20
seconds at a time or when empty.
Be careful not to over process. For
coarsely chopped foods, use repeated
short pulsing action until the desired
consistency is reached.
Fig. 6
3. Carefully insert the upper blade over
the lower blade rotating it until it
locks onto the lower blade.
(Fig. 7, Fig. 8)
Fig. 4
Fig. 5
IMPORTANT: Always assemble the
6. To start the appliance, press on the
On/Off Pulse button located on the
top of the power head. To stop the
appliance, remove your fingers from
the On/Off Pulse button. In order to
obtain a better quality of chopping,
operate the appliance by using the
“pulse” method. If the ingredients
stick to the side of the master prep
pitcher, stop the appliance, remove
the power head and the splash
guard. Use a spatula to dislodge the
pieces and then replace the splash
guard and the power head. Continue
processing.
blades inside the container.
Fig. 7
NOTE: Do not operate the appliance
continuously for more than 20
seconds at a time or when empty.
7. Hold the master prep pitcher firmly
while depressing the On-Off/Pulse
button to ensure the unit stays in
place.
8. Make sure that the blades have
stopped completely before removing
the splash guard.
9. Remove the blade assembly by its
shaft before you empty the contents
of the master prep pitcher.
10.Never add ingredients into the
master prep pitcher before placing
the blade assembly in first.
8. Hold the master prep bowl firmly while
depressing the On-Off/Pulse button to
ensure the unit stays in place.
9. Make sure that the blades have
stopped completely before removing
the splash guard.
shaft
Upper
Blade
Lower
Blade
spindle
Blades
Assembled
Fig. 8
Fig. 1
Fig. 2
CAUTION: Be careful not to hold by
the blades as the blades are very
sharp.
4. Place the food that you want to
process into the master prep bowl
and place the splash guard on the
bowl.
WARNING: Do not try
to place the blades
onto the power head
and then into the
Master prep pitcher.
(Fig. 3)
Fig. 3
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