1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Winkhaus GRM 1793989 window transmission kit. Please read these instructions carefully before proceeding with any procedures. Adherence to these guidelines will ensure the longevity and optimal performance of your window hardware.
2. Product Overview
2.1 Product Description
The Winkhaus GRM 1793989 is an original replacement transmission gear designed for both wooden and plastic windows. It features a clear galvanized (silver) finish for enhanced durability and corrosion resistance. This kit is specifically suitable for window sashes with a rebate height (FFH) between 1800 mm and 2300 mm.
2.2 Key Features
- Original Winkhaus GRM 1793989 transmission rail.
- Compatible with both wood and plastic window profiles.
- Clear galvanized (silver) finish for durability.
- Includes a ToniTec maintenance manual for comprehensive care instructions.
2.3 Product Components
The kit primarily includes the main transmission rail and associated components necessary for the window's operational mechanism. Familiarize yourself with the parts shown in the images below.
Image 1: Close-up of the Winkhaus GRM 1793989 transmission gear mechanism. This image highlights the central part of the gear, including the square drive for the handle and the locking points.
Image 2: Full view of the Winkhaus GRM 1793989 window transmission rail. This image displays the entire length of the mechanism, including the Winkhaus branding and various connection points.
Image 3: ToniTec maintenance manual for Winkhaus activPilot. This booklet provides additional guidance on the care and upkeep of Winkhaus window hardware.
3. Safety Instructions
Always prioritize safety during installation and maintenance. Failure to follow these instructions may result in injury or damage to the product or window.
- Always wear appropriate personal protective equipment (PPE), such as safety glasses and gloves, during installation and handling.
- Ensure the window sash is securely supported and cannot fall or swing unexpectedly before removing or installing any hardware.
- If you are unsure about any step or procedure, consult a qualified professional or a certified window technician.
- Keep all small parts and tools out of reach of children.
- Do not use excessive force when operating the window handle or mechanism.
4. Installation/Setup
This section outlines the general steps for replacing a window transmission gear. Specific procedures may vary based on your window type, existing hardware, and manufacturer's recommendations. Always refer to the included ToniTec maintenance manual for detailed instructions.
4.1 Tools Required
- Screwdriver set (Phillips and flathead)
- Measuring tape
- Pliers (optional, for stubborn pins or connections)
- Suitable lubricant (e.g., silicone spray, technical grease)
4.2 Step-by-Step Installation
Preparation:
Carefully remove the window handle. Locate and remove all screws securing the existing transmission rail to the window sash. Ensure the sash is stable.Removal of Old Gear:
Gently detach the old transmission rail from the window sash. Pay close attention to the position and connection points of all components, especially any connecting rods or pins.Measurement and Comparison:
Compare the new Winkhaus GRM 1793989 transmission rail with the old one to ensure compatibility and correct length. Verify that the sash rebate height (FFH) of your window falls within the 1800-2300 mm range for this model.Installation of New Gear:
Position the new transmission rail onto the window sash, aligning it precisely with the screw holes. Secure it with the appropriate screws, tightening them firmly but without over-tightening. Ensure all locking points and connection rods are correctly engaged with their respective counterparts.Handle Reinstallation:
Reattach the window handle, ensuring it engages the square drive of the transmission mechanism correctly. Test the handle's movement for smoothness.Functionality Check:
Test the window's opening, closing, tilting (if applicable), and locking functions multiple times. Ensure all movements are smooth and the window locks securely. Adjust screws or component positions if necessary to achieve optimal operation.
For detailed visual instructions and specific diagrams, please refer to the ToniTec maintenance manual included with your kit.
5. Operation
The Winkhaus GRM 1793989 transmission kit facilitates the smooth and secure operation of your window. The functionality typically involves turning the window handle to achieve different positions.
5.1 Basic Window Functions
Closing and Locking:
Turn the window handle to the fully downward (vertical) position. This action engages the locking points, securing the window in the closed position.Opening (Side Hung):
From the closed position, turn the handle to the horizontal position. This disengages the side locking points, allowing the window to open inwards.Tilting (Tilt-and-Turn Windows):
From the closed position, turn the handle to the fully upward (vertical) position. This action disengages the top locking points and engages the bottom hinges, allowing the window to tilt inwards from the top for ventilation.
Always ensure the handle moves freely and engages the mechanism without requiring excessive force. If resistance is felt, do not force the handle; investigate the cause.
6. Maintenance
Regular care and maintenance are crucial for ensuring the long-term functionality, smooth operation, and security of your Winkhaus window transmission system. Follow these guidelines to prolong the life of your hardware.
6.1 Recommended Maintenance Schedule
Cleaning (Quarterly):
Periodically clean the visible parts of the transmission mechanism and the window frame with a soft, damp cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the galvanized finish or other components.Lubrication (Annually):
At least once a year, apply a suitable lubricant (e.g., silicone-free spray, technical grease, or specialized window hardware lubricant) to all moving parts, locking points, hinges, and connection rods. This reduces friction, prevents wear, and ensures smooth operation. Refer to the included ToniTec manual for specific lubrication points.Inspection (Annually):
Regularly inspect the entire transmission system for any signs of wear, damage, corrosion, or loose screws. Pay particular attention to the connection points and locking elements. Tighten any loose screws immediately. Replace any damaged components promptly to maintain security and functionality.
For more detailed instructions and diagrams on specific lubrication points and care procedures, consult the ToniTec maintenance manual provided with your kit.
7. Troubleshooting
This section addresses common issues you might encounter with your window transmission and provides potential solutions. If a problem persists after attempting these steps, contact a qualified professional.
7.1 Problem: Window is difficult to open or close.
Solution:
Check for any physical obstructions in the window frame or sash that might be impeding movement. Lubricate all moving parts of the transmission mechanism and hinges as described in the maintenance section. Ensure all screws securing the transmission rail are tightened correctly.
7.2 Problem: Window handle is stiff or hard to turn.
Solution:
Apply lubricant to the internal mechanism of the transmission and the handle's square drive. Ensure the handle is correctly seated and not misaligned. If the handle is damaged, it may need replacement.
7.3 Problem: Window does not lock securely.
Solution:
Inspect the locking points on the transmission rail and their corresponding strike plates on the window frame. They might be misaligned, dirty, or worn. Clean the strike plates and adjust them if necessary to ensure proper engagement. Verify that the transmission mechanism is fully engaged when the handle is turned to the lock position.
If these troubleshooting steps do not resolve the issue, it is recommended to contact a qualified window technician for further diagnosis and repair.
8. Specifications
Detailed technical specifications for the Winkhaus GRM 1793989 window transmission kit are provided below:
| Feature | Detail |
|---|---|
| Manufacturer | Winkhaus |
| Model Number | GRM 1793989 |
| Size / Sash Rebate Height (FFH) | 2300/2 (1800-2300 mm) |
| Material | Galvanized metal (silver) |
| Compatibility | Wood and plastic windows |
| ASIN | B07N1R14CW |
| Batteries Required | No |
9. Warranty and Support
Specific warranty details for the Winkhaus GRM 1793989 are not provided within the product information available. For comprehensive warranty terms and conditions, please refer to your original point of purchase, the official Winkhaus website, or the documentation included with your product.
For technical support, assistance with installation, or any further inquiries regarding your Winkhaus GRM 1793989 window transmission kit, please contact Winkhaus customer service or a certified window hardware specialist. They can provide expert guidance and support.
