1. Introduction and Product Overview
The Oster Simply Dog Trimmer Kit Model 78577-010 is designed for precise and gentle grooming of your pet's delicate areas. This corded electric trimmer is ideal for trimming around the face, paws, and ears, offering control and comfort during use. Its quiet motor helps to minimize stress for sensitive pets.
2. Important Safety Information
Please read all instructions carefully before using the trimmer. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always unplug the trimmer from the electrical outlet immediately after use and before cleaning.
- Do not reach for an appliance that has fallen into water. Unplug immediately.
- Do not use while bathing or in a shower.
- Do not place or store appliance where it can fall or be pulled into a tub or sink.
- Keep the cord away from heated surfaces.
- Never operate this appliance if it has a damaged cord or plug, if it is not working properly, or if it has been dropped or damaged.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Children should be supervised to ensure that they do not play with the appliance.
- Use this product only for its intended use as described in this manual.
- Do not use attachments not recommended by the manufacturer.
- Never drop or insert any object into any opening.
- Do not use outdoors or operate where aerosol (spray) products are being used or where oxygen is being administered.
- Always ensure the pet is clean and dry before grooming to prevent blade damage and ensure efficient trimming.
3. Package Contents
Verify that all items listed below are present in your package:
- Oster Simply Dog Trimmer (Model 78577-010)
- Detachable Narrow Blade
- Blade Cover
- Cleaning Brush
- Blade Oil
- Four Styling Bows
- One Ribbon

Figure 3.1: Contents of the Oster Simply Dog Trimmer Kit. This image displays the pink trimmer with its cord, a black blade cover, a small bottle of blade oil, a black cleaning brush, and several decorative pet bows and a pink ribbon.
4. Product Features
- Soft Touch Comfort Grip: Provides a secure and comfortable hold during grooming.
- Compact Design: Less than 4 inches long, making it easy to maneuver for precise trimming.
- Detachable Narrow Blade: Allows for precise trimming in sensitive areas and facilitates quick and easy blade changes.
- Single-Handed On/Off Switch: Designed for convenient operation.
- Adjustable, Flexible Finger Ring: Offers a secure grip for both right and left-handed users and serves as a convenient hanger.
- Whisper Quiet Motor: Ideal for use on pets sensitive to noise.
5. Setup
- Unpack: Carefully remove all components from the packaging.
- Inspect: Check the trimmer and blade for any signs of damage. Do not use if damaged.
- Attach Blade: Ensure the detachable narrow blade is securely attached to the trimmer head. It should click into place.
- Initial Oiling: Before first use, apply 1-2 drops of the provided blade oil across the teeth of the blade. Turn the trimmer on for a few seconds to distribute the oil. Wipe off any excess oil.
- Power Connection: Plug the trimmer into a standard electrical outlet.
6. Operating Instructions
- Pet Preparation: Ensure your pet is clean, dry, and free of mats or tangles before trimming. This prevents blade dulling and ensures a smooth cut.
- Turning On: Locate the on/off switch on the trimmer body and slide it to the "ON" position.
- Grooming Technique:
- Hold the trimmer with the soft touch comfort grip, utilizing the finger ring for added stability if desired.
- Gently stretch the skin taut in the area you are trimming.
- Move the trimmer slowly and steadily against the direction of hair growth for a closer cut, or with the direction of hair growth for a longer finish.
- Use short, controlled strokes, especially around sensitive areas like eyes, ears, and paw pads.
- The narrow blade is specifically designed for precision in these delicate areas.
- Monitoring Blade Temperature: While the trimmer is designed to run cool, periodically check the blade temperature by touching it. If it becomes too warm, turn off the trimmer and allow it to cool before continuing.
- Turning Off: After grooming, slide the on/off switch to the "OFF" position and unplug the trimmer from the electrical outlet.
7. Maintenance and Cleaning
Proper maintenance ensures the longevity and performance of your trimmer.
- After Each Use:
- Unplug the trimmer.
- Use the cleaning brush to remove all hair from the blade and trimmer head.
- Apply 1-2 drops of blade oil across the teeth of the blade. Turn the trimmer on for a few seconds to distribute the oil, then wipe off any excess.
- Blade Care: Keep blades sharp and clean. Dull blades can pull hair and cause discomfort to your pet. Replace blades when they become dull or damaged.
- Storage: Store the trimmer in a dry place, away from moisture and extreme temperatures. Use the blade cover to protect the blade when not in use.
- Cleaning the Trimmer Body: Wipe the trimmer body with a soft, damp cloth. Do not immerse the trimmer in water or use harsh chemicals.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Trimmer does not turn on. | Not plugged in; power outlet malfunction; damaged cord/plug. | Ensure trimmer is securely plugged into a working outlet. Check for damage to cord or plug. If damaged, do not use and contact customer service. |
| Trimmer pulls hair or cuts poorly. | Blade is dull; blade is dirty/clogged with hair; insufficient oil; pet's hair is matted or dirty. | Clean the blade thoroughly with the brush. Apply blade oil. Ensure pet's hair is clean, dry, and tangle-free. Replace blade if dull. |
| Blade gets hot quickly. | Lack of lubrication; excessive use without cooling; dirty blade. | Ensure blade is properly oiled. Turn off trimmer and allow blade to cool. Clean blade to remove any debris. |
| Excessive noise or vibration. | Blade not properly seated; internal issue. | Ensure the blade is securely attached. If the problem persists, discontinue use and contact customer service. |
9. Specifications
- Model Number: 78577-010
- Brand: Oster
- Product Dimensions (L x W x H): 16.51 x 13.97 x 22.86 cm (6.5 x 5.5 x 9 inches)
- Weight: 430.91 g (0.95 lbs)
- Blade Material: Stainless Steel
- Power Source: Corded Electric
- Special Features: Soft Non-Slip Grip, Whisper Quiet Motor, Detachable Narrow Blade, Adjustable Finger Ring
- Intended Use: Pet Grooming (Facial Areas, Paws, Ears)
10. Warranty and Customer Support
For warranty information, technical support, or any questions regarding your Oster Simply Dog Trimmer Kit, please contact Oster customer service. Refer to the product packaging or the official Oster website for the most current contact details.
Please retain your proof of purchase for warranty claims.





