1. Product Overview
This manual provides instructions for the HQRP 11-1/4 inch glass turntable tray, designed as a replacement cooking plate for compatible microwave ovens, specifically the Westinghouse WST3507SS model. This component is essential for proper microwave operation, ensuring even heating of food.
Key Features:
- Overall Diameter: 11 1/4 inches (285 mm)
- Outside Turntable Track Diameter: 8 3/4 inches (where the roller guide wheels fit)
- Constructed from durable, food-safe glass.
- Designed for easy cleaning and maintenance.

Image 1.1: HQRP 11-1/4 inch Glass Turntable Tray
2. Compatibility and Dimensions
This HQRP glass turntable tray is specifically compatible with the Westinghouse WST3507SS microwave oven. To ensure proper fit and function, it is crucial to verify the dimensions of your existing turntable or microwave cavity before installation.
The tray has an overall diameter of 11 1/4 inches (approximately 285 mm). The outer track where the microwave's roller guide wheels are positioned measures 8 3/4 inches in diameter.

Image 2.1: Overall Diameter Measurement

Image 2.2: Detailed Dimensional Measurements
3. Setup and Installation
Follow these steps to install the glass turntable tray:
- Safety First: Before handling any microwave components, ensure the microwave oven is unplugged from the power outlet to prevent electrical hazards.
- Prepare the Cavity: Clean the interior of the microwave oven, especially the area where the roller guide and turntable will sit, to remove any food debris or spills.
- Place the Roller Guide: Position the microwave's roller guide (the circular ring with wheels) into the circular indentation on the microwave oven floor. Ensure it sits flat and can rotate freely.
- Install the Glass Tray: Carefully place the HQRP glass turntable tray onto the roller guide. The center of the glass tray should align with the coupler (the rotating shaft) in the center of the microwave oven floor. Ensure the tray sits securely on the roller guide and the coupler.
- Test Functionality: Plug the microwave oven back into the power outlet. Place a microwave-safe cup of water on the turntable and run the microwave for 30 seconds to ensure the turntable rotates smoothly and the water heats evenly.
4. Operating Instructions
Once installed, the glass turntable tray operates automatically with your microwave oven. Ensure that food items and containers are centered on the tray to allow for proper rotation and even cooking. Avoid placing excessively heavy items on the tray that could impede its rotation or cause damage.
5. Maintenance
Regular cleaning of the glass turntable tray is recommended to maintain hygiene and ensure optimal microwave performance.
- Cleaning: The glass tray can be easily removed for cleaning. Wash it with warm, soapy water or place it in a dishwasher. Rinse thoroughly and dry completely before returning it to the microwave.
- Handling: Handle the glass tray with care to prevent chipping or breakage. Avoid sudden temperature changes, such as placing a hot tray directly into cold water.
- Inspection: Periodically inspect the tray for any cracks, chips, or damage. A damaged tray should be replaced immediately to prevent further issues during microwave operation.

Image 5.1: Easy Cleaning of the Turntable Tray

Image 5.2: Food Safe Glass for Cooking
6. Troubleshooting
If you encounter issues with your HQRP glass turntable tray, consider the following:
- Turntable Not Rotating:
- Ensure the glass tray is correctly seated on the roller guide and the center coupler.
- Check for any food debris or obstructions beneath the tray or roller guide that might prevent rotation.
- Verify that the roller guide wheels are clean and move freely.
- Uneven Heating:
- Confirm the turntable is rotating during microwave operation.
- Ensure food items are placed centrally on the tray and are not too large to impede rotation.
- Tray Damage: If the glass tray is chipped, cracked, or broken, it must be replaced immediately to avoid safety hazards and ensure proper microwave function.
7. Specifications
| Brand | HQRP |
| Product Model Number | 887774410291547 |
| Compatible Microwave Model | Westinghouse WST3507SS |
| Overall Diameter | 11 1/4 inches (285 mm) |
| Outside Turntable Track Diameter | 8 3/4 inches |
| Material | Glass |
| Item Weight | 2.1 pounds |
| Package Dimensions | 13.5 x 13.5 x 2.5 inches |
8. Warranty and Support
Specific warranty information for this HQRP product is not detailed within this manual. For warranty claims, product support, or further assistance, please refer to the official HQRP website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
Contact Information:
- Visit the HQRP Store on Amazon for more information.
- Refer to the product packaging for additional contact details or support resources.
