1. Уводзіны і большview
The Crain No. 835 Heavy-Duty Undercut Saw Kit is designed for precise undercutting of various surfaces, including walls, door jambs, doors, inside corners, and most toe spaces. This powerful saw offers enhanced performance compared to previous models, featuring a 13 AMP motor for efficient operation. Its adjustable cutting height and dual-angle depth gauge ensure accurate and level cuts, making it an essential tool for flooring professionals.
2. Кампаненты і што ўваходзіць у камплект
The Crain No. 835 Saw Kit comes complete with the following components:
- Crain No. 835 Heavy-Duty Undercut Saw Unit
- No. 805 Masonry Blade (for undercutting hearths and other masonry materials)
- No. 836 Carbide Tipped Steel Blade (6-1/2" diameter, for general undercutting of wood and similar materials)
- 1812-P Blade Clamp (required for use with No. 805 Masonry Blade and optional 822 Diamond Blade)
- Пластыкавы футляр для пераноскі
- Hex Wrench (for blade removal and installation)
- Інструкцыя па эксплуатацыі (гэты дакумент)

Figure 2.1: The Crain No. 835 Heavy-Duty Undercut Saw Kit, showing the saw, blades, and carrying case.
3. Настройка
Before operating the Crain No. 835 Undercut Saw, ensure you have read and understood all safety warnings. Proper setup is crucial for safe and effective use.
3.1 Устаноўка блейда
- Ensure the saw is unplugged from the power source before handling blades.
- Выкарыстоўваючы шасцігранны ключ, які ўваходзіць у камплект, аслабце мацаванне лязаamp шруба.
- Carefully remove the existing blade (if any) and install the desired blade (Carbide Tipped Steel for wood, Masonry Blade for masonry). Ensure the blade is seated correctly on the arbor.
- If using the No. 805 Masonry Blade or optional 822 Diamond Blade, attach the 1812-P Blade Clamp.
- Зацягніце лязо клamp screw securely with the hex wrench.
3.2 Height and Depth Adjustment
The saw features adjustable cutting height and depth to accommodate various materials and applications.
- Рэгуляванне вышыні: The height of cut is easily adjustable from flush to 1 inch above the floor, with 3/32 inch graduations. The large height adjuster base helps prevent tipping and ensures accurate, level cutting.
- Рэгуляванне глыбіні: The dual-angle depth gauge allows undercutting at a 'straight on' or 45-degree angle. The depth gauge is graduated in 1/8 inch increments, with a 1-5/8 inch maximum depth of cut. Adjust the depth carefully to avoid cutting into structural elements.
4. Інструкцыя па эксплуатацыі
The Crain No. 835 Undercut Saw is designed for efficient and precise cutting. Always wear appropriate personal protective equipment (PPE), including eye protection, hearing protection, and gloves, during operation.
4.1 Агульныя дзеянні
- Ensure the work area is clear of obstructions and debris.
- Set the desired cutting height and depth according to the material being undercut.
- Plug the saw into a 120 VAC, 60Hz, 13 AMP power source. The saw is double insulated for safety.
- Position the saw firmly against the surface to be undercut.
- Engage the power switch and allow the blade to reach full speed (7,000 RPM) before beginning the cut.
- Guide the saw smoothly along the cutting line, maintaining firm pressure. Do not force the saw.
- After completing the cut, release the power switch and allow the blade to stop completely before lifting the saw.

Figure 4.1: The Crain No. 835 Undercut Saw positioned for undercutting a wall, demonstrating proper handling.
4.2 Канкрэтныя сферы прымянення
- Undercutting Walls and Door Jambs: The saw is ideal for undercutting these areas to allow for new flooring installation. Adjust the height to match the flooring thickness.
- Undercutting Doors: The 6-1/2" diameter No. 836 Carbide Tipped Steel Blade can fully undercut most doors in place.
- Undercutting Hearths: Use the No. 805 Masonry Blade for undercutting hearths and other stone or concrete surfaces.
4.3 Відэадэманстрацыя
A video demonstrating the use of the Crain No. 835 Undercut Saw for leveling concrete around steps and undercutting for flooring installation is available. This video showcases the tool's ability to cut through various materials, including old hardwood trim and concrete, using different blades. It highlights the precision of the depth stop and the effectiveness of the dust collection port when connected to a shop vacuum.
Note: This video is provided by an independent content creator and is for informational purposes only. Always refer to the official instruction manual for detailed safety and operational guidelines.
5. Тэхнічнае абслугоўванне
Regular maintenance ensures the longevity and optimal performance of your Crain No. 835 Undercut Saw.
- Уборка: After each use, unplug the saw and clean off any dust or debris from the motor housing, blade guard, and adjustment mechanisms. Use a dry cloth or soft brush.
- Праверка ляза: Regularly inspect blades for wear, damage, or dullness. Replace dull or damaged blades immediately to ensure clean cuts and prevent strain on the motor.
- Праверка шнура: Check the 7-foot, 14/2 cord for any signs of damage, cuts, or fraying. Do not use the saw if the cord is damaged.
- захоўванне: Store the saw and its accessories in the provided plastic carrying case in a dry, secure location, away from moisture and extreme temperatures.
6. Выпраўленне непаладак
If you encounter issues with your Crain No. 835 Undercut Saw, refer to the following common troubleshooting tips:
| праблема | Магчымая прычына | Рашэнне |
|---|---|---|
| Піла не заводзіцца | Not plugged in; power outlet issue; damaged cord; internal fault. | Check power connection; test outlet with another device; inspect cord for damage (do not use if damaged); consult qualified technician. |
| Дрэнная прадукцыйнасць рэзкі | Dull or incorrect blade; improper depth/height setting; forcing the saw. | Replace blade; ensure correct blade for material; adjust settings; allow saw to work at its own pace. |
| Празмерная вібрацыя або шум | Loose blade; damaged blade; internal component issue. | Ensure blade is securely tightened; replace damaged blade; consult qualified technician. |
For issues not listed here or if solutions do not resolve the problem, contact Crain customer support or a qualified service professional.
7. Тэхнічныя характарыстыкі
| Спецыфікацыя | Каштоўнасць |
|---|---|
| Нумар мадэлі | 835 |
| Магутнасць рухавіка | 13 Amps (1560 Вт) |
| тtage | 120 Volts AC |
| Частата | 60 Гц |
| Хуткасць без нагрузкі | 7,000 XNUMX абаротаў у хвіліну |
| Дыяметр клінка | 6-1/2 inches (No. 836 Carbide Tipped Steel Blade) |
| Максімальная глыбіня рэзання | 1-5/8 цаляў |
| Рэгуляванне вышыні | Flush to 1 inch above floor (3/32" graduations) |
| Даўжыня шнура | 7 feet (14/2 cord) |
| Ізаляцыя | Двайны ізаляваны |
| Вага прадмета | 19 фунта |
| Памеры (пакет) | 24.3 х 12.1 х 8.7 цалі |
8. Інфармацыя па бяспецы
WARNING: Always follow safety precautions to prevent injury or damage to the tool.
- Заўсёды карыстайцеся адпаведнымі сродкамі індывідуальнай абароны (СІА), у тым ліку ахоўнымі акулярамі, ахоўнымі слыхавымі апаратамі і пальчаткамі.
- Ensure the saw is unplugged before making any adjustments, changing blades, or performing maintenance.
- Do not operate the saw if the blade guard is missing or not functioning properly.
- Caution: Depth of undercut should not exceed wallboard thickness (generally 1/2 inch) to avoid structural weakening caused by cutting nails, wall studs, or sill plates, and to avoid blade damage by hitting nails.
- Keep hands and body clear of the rotating blade during operation.
- Трымайце пілу трывала абедзвюма рукамі падчас працы.
- Avoid kickback dangers by ensuring the blade is sharp and not binding in the material.
- Не працуйце ў вільготных умовах і не падвяргайце ўздзеянню дажджу.
- Трымайце дзяцей і навакольных далей ад працоўнай зоны.
9. Гарантыя і падтрымка
For warranty information, technical support, or to purchase replacement parts and accessories, please contact Crain Tools customer service or visit their official webсайт. Захоўвайце чэк аб куплі як пацвярджэнне пакупкі для гарантыйных прэтэнзій.