Introduction
This manual provides instructions for the installation, maintenance, and proper use of your USonline911 replacement shaver head. This product is designed to be compatible with various Philips Norelco electric shaver models, ensuring continued performance and a comfortable shaving experience.

Image: The USonline911 replacement shaver head shown with its clear protective cover. This image illustrates the complete unit as it would appear out of the package.
Compatibility
This replacement shaver head is compatible with a wide range of Philips Norelco electric shaver models. Please verify your shaver's model number against the lists below to ensure proper fitment.
For S5000 Series:
- S5210, S5380, S5570/33, S5570/43, S5560, S5079, S5082, S5095, S5080, S5081, S5095, S5090, S5082, S5081, S5080, S5079, S5078, S5077, S5015, S5013, S5510, S5340, S5140, S5110, S5400
- S9161, S5050, S7510, S5380, S5011, S5010, S5008, S5571, S5570, S5570, S5560, S5380, S5370, S5230, S5210, S5130, S5110, S5095, S5090, S5082, S5081, S5080, S5079, S5078, S5077, S5015, S5013
For S7000 Series:
- SH70/52, S7310, S7370, S7530, S7720, S7780, S8950/90, S8950/91, S6550, S6840, S6580, S6011, S6670, S7980, S7940, S7887, S7886, S7710, S7788, S7786, S7783, S7782, S7780
- S7740, S7720, S7710, S7530, S7510, S7520, S7530, S7371, S7370, S7350, S7326, S7312, S7311, S7310, S7010, S7310
For S9000 Series:
- S9000, S9911, S9731, S9711, S9511, S9522, S9111, S9031, SH90/52, sh60/52, sh98/52, sh98, sh98/51, SH70/52, SH90/52, S9011, S9021
- S9031, S9041, S9111, S9121, S9151, S9161, S9171, S9311, S9321, S9371, S9511, S9521, S9522, S9531, S9711, S9721, S9731, S9911, S9988
For SH98 Series:
- SH98, SH98/51, SH98/52, S9985, S9987, SP9860, SP9863, SP9880, SP9862, SP9861, SP9820
For RQ10 Series:
- RQ1050, RQ1075, RQ1060, RQ1085, RQ1090, RQ1095, RQ1059, RQ1050, RQ1051, RQ1052, RQ1053, RQ1059, RQ1060
- RQ1061, RQ1062, RQ1075, RQ1076, RQ1077, RQ1085, RQ1087, RQ1090, RQ1095, RQ1050x, RQ1059x, RQ1090x
For RQ11 Series:
- RQ1150, RQ1150X, RQ1131, RQ1141, RQ1145, RQ1151, RQ1155, RQ1160, RQ1160X, RQ1170, RQ1180, RQ1180X, RQ1180A, RQ1175
- RQ1175CC, RQ1190, RQ1190X, RQ1195, RQ1160CC, RQ1180X, RQ1185, RQ1190X, RQ1180CC, RQ1185CC, RQ1195CC, RQ1195, RQ1168, RQ1168, RQ1187, YS1106, YS1108
For RQ12 Series:
- RQ1250, RQ1250CC, RQ1260, RQ1260CC, RQ1280, RQ1280CC, RQ1290, RQ1290CC, RQ1251, RQ1251CC, RQ1252
- RQ1252CC, RQ1265, RQ1265CC, RQ1285, RQ1285CC, RQ1286, RQ1286CC, RQ1295, RQ1295CC, RQ1296, RQ1296CC, RQ1297CC
- RQ1255, RQ1255CC, RQ1258, RQ1258CC, RQ1275, RQ1275CC, RQ1261, RQ1290cc, RQ1250X, RQ1260X, RQ1280X, RQ1290X
Package Contents
The package includes the following components:
- One (1) Replacement Shaver Head Assembly
- One (1) Protective Cover

Image: An exploded view showing the individual components of the replacement shaver head, including blades, retaining rings, and the main housing.
Setup and Installation
- Preparation: Before installing the new shaver head, ensure your electric shaver is turned off and unplugged. It is recommended to clean the shaver thoroughly to remove any hair or debris from the previous head.
- Removing the Old Shaver Head: Gently pull the existing shaver head upwards from the shaver body. It should detach with moderate force. Refer to your original shaver's manual for specific instructions if you encounter difficulty.
- Installing the New Shaver Head: Align the new replacement shaver head with the shaver body. Press down firmly until you hear a click, indicating it is securely in place. Ensure all four cutting elements are properly seated.
- Initial Check: After installation, turn on the shaver briefly to ensure the new head operates smoothly without unusual noises or vibrations.
Operating Instructions
Once installed, the replacement shaver head functions identically to the original. For optimal shaving results, follow these general guidelines:
- Ensure your shaver is fully charged before use.
- Move the shaver in small, circular motions over your skin.
- Apply gentle pressure; excessive force is not necessary and can cause irritation.
- For best results, shave against the direction of hair growth.
- The new head is designed to provide a comfortable and close shave.

Image: A person demonstrating the use of an electric shaver equipped with the replacement head, highlighting its function during a shave.
Maintenance
Regular cleaning and maintenance will extend the life of your replacement shaver head and ensure consistent performance.
- Daily Cleaning: After each shave, turn off and unplug the shaver. Open the shaver head and rinse it thoroughly under warm running water to remove loose hairs and shaving cream residue.
- Deep Cleaning: Periodically, disassemble the shaver head (refer to your shaver's original manual for detailed disassembly instructions) and clean the individual cutting elements and guards with a small brush. Allow all parts to air dry completely before reassembling.
- Lubrication: Apply a drop of shaver oil to each cutting element once a month to maintain optimal performance and reduce friction.
- Replacement Frequency: For best results, it is recommended to replace shaver heads every 12-18 months, or sooner if you notice a decrease in shaving performance or increased irritation.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Shaver head does not fit | Incorrect model compatibility | Verify your shaver's model number against the compatibility list in this manual. |
| Reduced shaving performance | Accumulated hair/debris; blades require lubrication | Clean the shaver head thoroughly. Apply shaver oil to the cutting elements. |
| Increased skin irritation | Improper shaving technique; shaver head needs cleaning or replacement | Ensure gentle pressure and proper technique. Clean the shaver head. If irritation persists, consider replacing the head if it's old. |
| Unusual noise during operation | Shaver head not properly seated; debris caught in blades | Re-seat the shaver head firmly. Disassemble and clean the head to remove any obstructions. |
Specifications
- Product Type: Replacement Shaver Head
- Brand: USonline911
- Compatibility: Philips Norelco RQ10, RQ11, RQ12, RQ12 PLUS PRO Series, S5000, S7000, S9000, SH98 Series (refer to full compatibility list)
- Material: High-quality replacement blades
Warranty and Support
Specific warranty details for this replacement shaver head are not provided in the product information. For any issues or support inquiries, please contact the seller, USonline911, directly through the platform where the purchase was made. They can assist with defective or damaged products upon arrival, or any problems encountered during use.





