1. הקדמה
The Body-Solid GCEC-STK Pro Select Leg Extension and Curl Machine is designed to provide a comprehensive lower body workout, targeting quadriceps, hamstrings, and glutes. This versatile machine allows users to perform both leg extension and leg curl exercises from a single, comfortable position. It features a 210 lb weight stack, adjustable components, and durable construction suitable for both home and commercial gym environments.
2. זיכערקייַט אינפֿאָרמאַציע
- לייענען אַלע ינסטראַקשאַנז איידער פֿאַרזאַמלונג און נוצן.
- באַראַטנ זיך אַ דאָקטער איידער איר אָנהייבן קיין געניטונג פּראָגראַם.
- זיכער מאַכן אַז אַלע באָלץ, ניסלעך און פֿאַרבינדונגען זענען זיכער צוגעצויגן פֿאַר יעדן באַנוץ.
- האַלטן קינדער און פּעץ אַוועק פון די ויסריכט בעשאַס אָפּעראַציע.
- Use the machine on a level surface.
- Do not exceed the maximum recommended weight for the machine.
- הער אויף צו טאָן געניטונגען גלייך אויב איר פילט ווייטיק, שווינדל, אדער איבל.
3. סעטאַפּ און אַסעמבלי
The Body-Solid GCEC-STK machine requires assembly. Refer to the separate assembly guide for detailed step-by-step instructions. Once assembled, ensure the machine is placed on a stable, level surface with adequate clearance around it for safe operation. The machine dimensions are approximately 54 inches (L) x 54 inches (W) x 71 inches (H).

Figure 1: The Body-Solid GCEC-STK Pro Select Leg Extension and Curl מאַשין.
ערשט אַדזשאַסטמאַנץ
Before beginning your workout, adjust the machine to fit your body comfortably and ensure proper exercise form:
- Seat Back Adjustment: The back pad features 7 position adjustments. Adjust the seat back to ensure your knees are properly aligned with the machine's pivot point for both leg extensions and curls.
- Thigh Restraint/Roller Adjustment: פֿאַר פוס גurls, use the oversized pop pin to adjust the thigh restraint to a comfortable position, securing your upper legs. For leg extensions, position your legs behind the oversized rollers.
- וואָג אויסוואַל: Select the desired weight using the weight stack pin. The machine comes with a 210 lb weight stack.
4. אַפּערייטינג ינסטרוקטיאָנס
The GCEC-STK machine allows for two primary exercises: Leg Extensions and Leg Curls.
4.1 Leg Extension Exercise (Targets Quadriceps)
- Sit on the machine with your back firmly against the back pad.
- Position your legs behind the oversized rollers, ensuring the rollers rest comfortably on your shins, just above your ankles.
- Firmly grip the handles located on the sides of the seat for stability.
- Extend your legs forward and upward, contracting your quadriceps. Ensure a controlled movement, avoiding jerking motions.
- Slowly lower the weight back to the starting position, maintaining control throughout the movement.

Figure 2: User performing a leg extension exercise.
4.2 Leg Curl Exercise (Targets Hamstrings and Glutes)
- Adjust the thigh restraint by pulling the oversized pop pin and positioning it comfortably over your thighs to secure your upper legs.
- Sit down and wrap your legs over the 8-inch foam rollers, ensuring they rest on your Achilles tendons.
- Firmly grip the handles for stability.
- Press down with your legs, curling them towards your glutes, contracting your hamstrings.
- Slowly return your legs to the starting position, controlling the weight.

Figure 3: User performing a leg curl געניטונג.
4.3 לערנ־ווידעא
Video 1: Official demonstration of the Body-Solid GCEC-STK Pro Select Leg Extension and Leg Curl Machine in use, showcasing proper form for both exercises.
5. וישאַלט
Regular maintenance ensures the longevity and safe operation of your Body-Solid GCEC-STK machine.
- רייניקונג: Wipe down the machine, especially the pads and handles, with a damp cloth after each use to remove sweat and dirt. Use mild soap and water if necessary, avoiding harsh chemicals.
- דורכקוק: Periodically inspect all nuts, bolts, and moving parts for tightness and wear. Tighten any loose fasteners. Check cables and pulleys for fraying or damage.
- שמירן: Apply a silicone-based lubricant to guide rods and pivot points as needed to ensure smooth operation. Do not over-lubricate.
- סטאָרידזש: האַלט די מאַשין אין אַ טרוקענער, קלימאַט-קאָנטראָלירטער סביבה צו פאַרמייַדן ראַסט און מאַטעריאַל דעגראַדאַציע.
6. טראָובלעשאָאָטינג
If you encounter issues with your machine, refer to the following common troubleshooting tips:
- קוויטשענדיקע אדער קראַצנדיקע גערוישן: Check for loose bolts or components. Lubricate moving parts as described in the maintenance section. Inspect cables and pulleys for proper alignment and wear.
- קעגנשטעל פראבלעמען: Ensure the weight stack pin is fully inserted into the desired weight plate. Check for any obstructions in the cable path or issues with the weight stack mechanism.
- נישט-סטאַבילע מאַשין: Verify that the machine is placed on a level surface. Check all frame bolts and connections for tightness.
- Difficulty Adjusting Components: Ensure adjustment pins are fully disengaged before attempting to move components. Clean and lubricate adjustment mechanisms if they are stiff.
For persistent issues or problems not covered here, contact customer support.
7. ספּעסאַפאַקיישאַנז
| שטריך | דעטאַל |
|---|---|
| סאָרט | גוף-סאָליד |
| מאָדעל נאָמען | GCEC-STK |
| פּראָדוקט דימענשאַנז (LxWxH) | 54" x 54" x 71" |
| Item Weight (Machine) | 412 לבס |
| פּעקל וואָג | 415 לבס |
| Maximum Weight Stack | 210 lbs (upgradable to 310 lbs) |
| שפּאַנונג לעוועל | 4650 lb (Cable Rating) |
| טיפּ פון שעפּן | פאַרפעסטיקט |
| מאַטעריאַל | Steel, Durafirm Pads |
| סאַגדזשעסטיד יוזערז | וניסעקס-דערוואַקסן |
| UPC | 638448008885 |
8. וואָראַנטי אינפֿאָרמאַציע
The Body-Solid GCEC-STK Pro Select Leg Extension and Curl מאַשין קומט מיט אַ לימיטעד ליפעטימע וואָראַנטי. For specific details regarding coverage, terms, and conditions, please refer to the official warranty documentation provided with your product or contact Body-Solid customer service.
9. קונה שטיצן
For further assistance, parts, or service inquiries, please contact Body-Solid customer support through their official website or the contact information provided in your product packaging. When contacting support, please have your model number (GCEC-STK) and proof of purchase readily available.





