1. Introduction
This manual provides essential instructions for the safe and efficient operation, maintenance, and care of your KitchenAid KSM8990 NSF Certified Commercial Series 8-Quart Bowl Lift Stand Mixer. Please read all instructions thoroughly before initial use to ensure proper functionality and longevity of your appliance.
The KitchenAid KSM8990 is designed for commercial use, featuring an 8-quart capacity and a powerful 1.3 HP motor, ensuring consistent performance for demanding mixing tasks.
2. Safety Information
Important Safeguards:
- Always unplug the mixer from the outlet before cleaning, assembling, or disassembling parts.
- Avoid contact with moving parts. Keep hands, hair, and clothing, as well as spatulas and other utensils, away from the beater during operation to reduce the risk of injury to persons and/or damage to the mixer.
- Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been dropped or damaged in any manner.
- This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. (California Proposition 65 Warning)
- Ensure the speed control is set to '0' (OFF) before plugging in or unplugging the appliance.
3. Product Overview
The KitchenAid KSM8990 Stand Mixer is a robust appliance designed for high-volume mixing. It features a bowl-lift design for stable operation and a high-efficiency DC motor.
Figure 1: KitchenAid KSM8990 8-Quart Bowl Lift Stand Mixer in Onyx Black. This image displays the KitchenAid KSM8990 8-Quart Bowl Lift Stand Mixer in Onyx Black, featuring its robust design and the included stainless steel mixing bowl. A red power cord is visible, coiled at the base.
Included Components:
- 8-Quart Stainless Steel Mixing Bowl: Designed for large batches and durability.
- Stainless Steel Flat Beater: For normal to heavy mixtures such as cakes, frostings, cookies, and mashed potatoes.
- Stainless Steel Spiral Dough Hook: For mixing and kneading yeast doughs such as breads, pizza dough, and pasta dough.
- Stainless Steel 11-Wire Elliptical Whip: For incorporating air into eggs, egg whites, whipping cream, and dips.
Figure 2: KitchenAid KSM8990 Stand Mixer with included attachments. The KitchenAid KSM8990 Stand Mixer is shown alongside its three primary stainless steel attachments: the flat beater, spiral dough hook, and 11-wire elliptical whip, ready for various mixing tasks.
Key Features:
- Bowl-Lift Design: Provides stable mixing and allows the lever to smoothly raise the bowl into position for efficient beater-to-bowl contact.
- High-Efficiency DC Motor: Runs longer with less heat build-up, delivering optimum torque for demanding recipes.
- Speed Control Protection: Reduces the risk of accidental activation during cleaning.
- NSF Certified: Approved for commercial use, meeting strict public health and safety standards.
4. Setup
- Placement: Place the mixer on a dry, flat, and stable surface. Ensure adequate clearance around the mixer for operation and ventilation.
- Attaching the Mixing Bowl:
- Raise the motor head by rotating the bowl-lift lever to the down position.
- Fit the bowl supports over the locating pins on the mixer base.
- Press down on the back of the bowl until the locating pin snaps into the spring latch.
- Rotate the bowl-lift lever to the up position to secure the bowl.
- Attaching an Accessory:
- Ensure the mixer is unplugged and the speed control is OFF (0).
- Slide the accessory onto the beater shaft and push upward as far as possible.
- Rotate the accessory to the right, engaging the pin on the shaft with the slot in the accessory.
- Power Connection: Plug the mixer into a grounded 3-prong outlet.
5. Operating Instructions
Speed Control:
Figure 3: Speed control knob and settings. This image provides a close-up of the mixer's speed control knob, showing the various speed settings from 'Stir' to '10', along with the NSF certification mark.
The mixer features a 10-speed control knob. Always start at a lower speed and gradually increase to the desired setting to prevent splashing ingredients.
- Stir (Speed 1): For slow stirring, combining, and adding dry ingredients.
- Speeds 2-4: For slow mixing, mashing, and cutting in butter.
- Speeds 5-6: For beating, creaming, and fast mixing.
- Speeds 7-10: For fast beating, whipping, and aerating.
Bowl Lift Mechanism:
Figure 4: Bowl lift lever. A detailed view of the bowl lift lever and mechanism, illustrating how the mixing bowl is securely raised and lowered into position.
The bowl-lift lever is located on the side of the mixer. Use it to raise the bowl into the mixing position before starting the mixer and to lower it for easy removal of ingredients or attachments.
6. Maintenance and Cleaning
Regular cleaning ensures the hygiene and extends the life of your mixer.
- Before Cleaning: Always unplug the mixer from the electrical outlet. Ensure the speed control is set to '0' (OFF).
- Mixer Body: Wipe the mixer body with a damp cloth. Do not immerse the mixer in water or other liquids.
- Attachments and Bowl: The stainless steel mixing bowl, flat beater, spiral dough hook, and wire whip are dishwasher-safe. For best results, wash them in hot, soapy water or in the dishwasher. Rinse thoroughly and dry.
- Power Cord: Inspect the power cord regularly for any signs of damage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Mixer does not start. | Not plugged in; speed control not set to '0' (OFF) before plugging in; power outage. | Ensure mixer is securely plugged in. Set speed control to '0' (OFF), then plug in and select desired speed. Check circuit breaker. |
| Attachment hits the bottom of the bowl or does not reach ingredients. | Beater-to-bowl clearance needs adjustment. | Refer to the KitchenAid service manual or contact customer support for instructions on adjusting the beater-to-bowl clearance screw. |
| Mixer stops during operation. | Overload protection activated. | Turn the speed control to '0' (OFF) and unplug the mixer. Remove some of the mixture. Wait 10-15 minutes, then plug in and restart at a lower speed. |
If problems persist, please contact KitchenAid Customer Support.
8. Specifications
- Brand: KitchenAid
- Model Name: NSF Certified Commercial Series
- Item Model Number: KSM8990OB
- Color: Onyx Black
- Capacity: 8 Quarts
- Controls Type: Knob
- Product Dimensions: 13.3"D x 16.5"W x 14.6"H
- Item Weight: 25 pounds
- UPC: 883049280790
- Special Feature: Manual
- Is Dishwasher Safe (Mixer Body): No
9. Warranty and Support
For warranty information, service, or to purchase additional accessories, please visit the official KitchenAid website or contact KitchenAid Customer Support directly. Keep your purchase receipt for warranty claims.
You may also consider purchasing extended protection plans for your appliance. Details on available protection plans can often be found where the product was purchased.
KitchenAid Official Website: www.kitchenaid.com
