StairMaster 8G Owner's Manual
Table of Contents
- Important Safety Instructions
- Product Specifications
- Important Label Locations
- Part Identification
- Operation - OpenHub LCD Consoles
- Operation - OpenHub Touchscreen Consoles
- Program Profiles
- Workout Selection Keys and Program Definitions
- WFI Test Program
- Program Upload
- 8G/10G Menu Map
- Maintenance Mode - LCD
- Maintenance Mode - Touchscreen
- Maintenance Tools
- Maintenance Schedule
- Support & Service
Important Safety Instructions
WARNING! Before using this product, it is essential to read the ENTIRE Owner's Manual and ALL installation instructions. The Owner's Manual describes equipment setup and instructs members on how to use correctly and safely.
Read all warnings posted on the machine. ⚠️
Health-related injuries may result from incorrect or excessive use of exercise equipment. Core Health & Fitness strongly recommends encouraging members to discuss their health program or fitness regimen with a health care professional, especially if they have not exercised for several years, are over 35, or have known health conditions.
DANGER - To reduce the risk of electrical shock:
- Always unplug the machine from the electrical outlet before cleaning or servicing.
- This product is factory-equipped with a specific DC Power Supply to permit connection to the proper electric circuit. Ensure the product is connected to a dedicated power line with an outlet matching the plug configuration.
- Improper connection of the equipment-grounding conductor can result in a risk of electric shock. Consult a qualified electrician or serviceman if unsure about grounding. Do not modify the provided plug. No adapter should be used. If reconnection to a different electric circuit is necessary, it must be done by qualified service personnel.
- This machine is not intended for end-user servicing; refer servicing to qualified personnel only.
- If the power supply cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified persons to avoid a hazard.
- Keep the cord away from heated surfaces. Unplug the power cord when the machine is unattended and before performing any preventative maintenance such as cleaning or replacing a worn part.
- Do not operate the unit in damp or wet locations.
WARNING - To reduce the risk of injury to person:
- Assemble and operate the machine on a solid, level surface. Position the machine with a minimum of 48 inches (1.25 meters) of clearance for mounting and dismounting. Allow 24 inches (0.6 meters) of clearance behind the machine. A ceiling height of 10 feet (3.0 meters) is recommended. These are minimum recommended distances.
- Users under 80 lbs (36 kg) may result in equipment not functioning as intended.
- Do not exceed the maximum allowable weight limit: 8G - 350 lbs. / 158 kg.
- This equipment is designed for use in a commercial gymnasium or health club. All users should read this manual before use. The machine should be part of your club's training program. Members should obtain a physical examination from their health care provider before beginning any exercise program.
- This machine is not intended for use by persons with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless supervised by a person responsible for their safety.
- Keep children away.
- Familiarize yourself with the location of the STOP buttons on the console and right handrail. Pushing the STOP button will bring the machine to a stop.
- Use care when getting on or off the machine. Always use the handrails. Do not step off while the machine is moving. Press the STOP button and wait for the machine to come to a complete stop before dismounting.
- Wear proper exercise clothing and athletic shoes. Avoid loose clothing. Tie back long hair and keep towels away from moving parts. Face forward at all times; never attempt to turn around while the machine is moving.
- Do not operate the machine if shrouds are removed or the power cord is damaged. Keep air openings free from dirt or obstructions.
- The safety and integrity of this machine depend on regular examination for damage and wear, and prompt repair. The owner is responsible for ensuring regular maintenance. Worn or damaged parts must be replaced immediately, or the equipment removed from service until repair.
- WARNING: Heart rate monitoring systems may be inaccurate. Over-exercising may result in serious injury or death. If you feel faint, stop exercising immediately.
- Noise emission under load is higher than without load.
SAVE THESE INSTRUCTIONS
Product Specifications
The StairMaster 8G is a robust piece of fitness equipment designed for commercial use.
| SKU | Description | Unit Weight | Width | Length | Height | Max User Weight |
|---|---|---|---|---|---|---|
| 9-5270 | 8G | 370 lbs (167.5 kg) | 34.5 in (87 cm) | 59.5 in (151 cm) | 88.6 in (225 cm) | 80 - 350 lbs (36 - 158 kg) |
Important Label Locations
Key safety and operational labels are affixed to the machine. These labels provide critical information regarding safe usage and potential hazards. Always refer to these labels before operating the equipment.
WARNING LABEL:
- READ THE OWNER'S MANUAL AND FOLLOW ALL PROPER INSTRUCTIONS PRIOR TO USE. IMPROPER USE OF THIS MACHINE CAN RESULT IN SERIOUS INJURY.
- 1. As with all exercise equipment or programs, consult a physician prior to use and stop if you feel faint, dizzy, or exhausted.
- 2. This equipment should only be used in a supervised environment.
- 3. Inspect machine prior to use and immediately report worn, loose, or damaged equipment to the responsible party and refrain from using it.
- 4. Always exercise in control. Begin exercising carefully as steps and/or pedals will begin to move once contacted.
- 5. Keep body and clothing free and clear of all moving parts.
- 6. Always wear closed-toe athletic shoes when operating this machine.
- 7. Keep children away.
- 8. Replace this label if damaged or illegible.
Manufacturer Information:
Core Health & Fitness, LLC
4400 NE 77th Avenue, Suite 300
Vancouver, WA 98662 USA
1-888-678-2476
Certifications: Class SA Fitness Equipment for commercial use only. Designed in the USA, Made in China.
Part Identification
The StairMaster 8G features several key components:
- A: Console: The user interface displaying workout data and controls.
- B: Shrouds / Housing: The protective outer casing of the machine.
- C: Main Frame: The primary structural support of the machine.
- D: Leveling Foot: Adjustable feet to ensure stability on uneven surfaces.
- E: Transport Wheel: Wheels for moving the machine.
- F: Stair: The stepping mechanism of the machine.
- G: Handrail: Provides support and balance during workouts.
- H: Heart Rate Grips: Sensors to measure the user's heart rate.
- I: STOP Button: Emergency stop button located on the console and right handrail.
Operation - OpenHub LCD Consoles
Display Measurements
- SPEED: Displays the current speed in Steps Per Minute.
- LEVEL: Displays the current level, from 1-25.
- KCAL: Displays accumulated calories burned.
- WATTS/METS: Alternates display of current user Watts and METS.
- WORKOUT PROFILE: Displays profile of past and upcoming speed levels relative to one another.
- SEGMENT TIMER: Counts down the time remaining in the current segment.
Top Display Window
The top display window includes several measures:
- TIME: Current total workout time.
- FLOORS: Current total number of floors climbed.
- STEPS: Current total number of steps climbed.
- HEART RATE: Current HR in beats per minute, if available.
Console Key Functions
- QUICK START Key: Enables manual operation using a default weight, SPEED, and a default time limit. Default time and weight are adjustable through Maintenance Mode.
- STOP Button: Press to enter pause mode. The workout will be suspended, and a countdown timer will begin. To re-start, press the [Start/Resume Key]. To end the workout, push the STOP button again.
Operation - OpenHub Touchscreen Consoles
The touchscreen console offers a more interactive user experience. Key functions are accessible via the console and handlebars.
Console & Handlebar Functions
- F QUICK START Key: Enables manual operation with default settings. Time and weight can be adjusted in Maintenance Mode.
- G STOP Button: Pauses the workout. Press again to resume or hold to end.
- C Flag Button: Displays language options (home screen only).
- D Unit Button: Toggles between metric and imperial units (home screen only).
- H Level Adjustment: Allows users to increase or decrease the program level.
- A Main Menu: Accesses workout controls and settings.
Bluetooth Device Pairing
The console supports pairing with Bluetooth devices like smartphones and smartwatches.
- Bluetooth Device Pairing with Bluetooth Button: Pressing the button initiates discover mode for up to 60 seconds. The button flashes during search, and the display shows a unique console code. A solid light indicates a successful connection. Visit the website for a list of compatible apps.
- Pairing with Apple Watch: Consoles marked with the Apple Watch icon support connection via NFC. Requires WatchOS 4.2 or later and 'Detect Gym Equipment' enabled in Watch settings.
- Pairing with Samsung Galaxy Watch: Consoles marked with the Samsung Galaxy Watch icon support connection via NFC. Requires software 4.8 or later and NFC enabled.
To connect a watch: Hold the watch near the console's NFC reader icon. The display and watch will confirm connection, and data will transfer. This can be done before or during a workout. The connection terminates at the end of the workout.
Note: When connected to Apple Watch, the Calories display shows both Active and Total Calories.
Screen Views
Users can select from multiple screen view options during workouts by tapping icons at the bottom of the screen. Screens may vary by unit.
- Simple: Displays key workout stats in a large, readable format.
- Progress: Shows workout stats plus a graphical representation of segments.
- Quick: Displays workout stats with customizable buttons for incline/speed selection.
- Entertainment: Allows viewing video from connected TV feeds or HDMI streaming from personal devices (networked products only).
- Apps View: Provides access to on-board apps like YouTube, Facebook, Instagram, Twitter, Reddit, Pinterest, BBC, and NPR.
Display Measurements
Measurements are displayed at the top of the screen. Tapping a measurement box allows selection of alternative measures.
- Calories: Active/Total calories burned (Apple Watch only).
- Cal/Hour: Current rate of calorie burn.
- Floors: Current floors climbed.
- Steps: Current steps climbed.
- Time: Current total workout time.
- Watts: Current user Watts.
- METS: Current user METS.
- Floors/Min: Current climbing speed.
- Heart Rate: Current HR in beats per minute, if available.
Heart Rate Zones are indicated by color changes based on percentage of theoretical maximum heart rate (calculated as 220-Age): Low Intensity (30-59%), Heart Healthy (60-69%), Endurance Training (70-79%).
Workout Selection Keys and Program Definitions
The main screen offers several workout choices:
- Quick Start: Initiates a manual workout with user-provided information for calorie and heart rate calculations. Default time can be adjusted in Maintenance Mode.
- Existing Workouts: Includes options like 5K Time Trial, Manual, Random Hill, Alpine Pass, and Evaluate Fitness (Fitness Test, Firefighter Test, Military Tests - refer to Service Manual for details).
- Build a Workout: Allows creation of custom workouts such as Custom Interval Training, Heart Rate Training, Time Goal, Distance Goal, and Calorie Goal.
StairMaster TWENTY
A 20-minute High Intensity Interval Training (HIIT) program designed for all fitness levels. It offers benefits like lower blood pressure, improved glucose sensitivity, reduced body fat, and enhanced aerobic fitness and muscular power. Workouts are time-efficient, delivering maximum fitness benefits with reduced training volume.
RunTV
Provides first-person videos of various running paths to visually enhance the workout experience.
WFI Test Program
The WFI test assesses aerobic capacity (VO2max) by calculating milliliters of oxygen per kilogram of body weight per minute. It is based on heart rate response during graded exercise.
Formulas
- Target HR: [208 - (0.7 * Age)] * 0.85
- BMI (in - lbs): 703 * Weight (lbs) / [Height (in)]²
- BMI (cm - kg): Weight (Kg) / [Height (m)]²
- VO2max: 57.774 + (1.757 * time) - (0.904 * BMI)
Test Protocol
The test begins with a warm-up period (e.g., 46 steps/min for 2 minutes, then 53 steps/min for 1 minute), followed by 1-minute intervals of increasing work loads. Users should not hold or lean on handrails to avoid overestimating aerobic capacity.
The test completes when the heart rate exceeds the Target Heart Rate (THR) for 15 seconds. The total test time includes the warm-up but not the final 15-second qualification period.
The test is aborted with no results if:
- The user stops or pauses the workout.
- The [STOP Key] is pressed.
- The THR has not been met after 16 minutes of work.
- The Heart Rate signal is lost.
- Equipment malfunctions.
Program Profiles
These profiles are selected in combination with Goal Based programs:
- Manual Profile: User controls speed and calculates statistics based on weight. The workout profile is divided into 20 equal intervals.
- Fat Burner Profile: A 20-interval workout with moderate intensity changes designed to stimulate fat assimilation for weight control.
- Calorie Burner Profile: A 20-interval workout designed to increase aerobic capacity with greater intensity changes than the Fat Burner program.
- Intervals Profile: An interval workout with 8 alternating rest intervals and 7 exercise intervals. Rest and work intensity levels can be scaled independently.
- Bell-Shaped Profile: A 20-interval workout that increases intensity for the first half and decreases in the second half. Level changes affect remaining intervals.
- Build Profile: A 20-interval workout that steadily increases intensity throughout. Level changes affect remaining intervals.
- Mystery Challenge Profile: A 20-interval workout with randomly selected intensity changes for a unique profile each time. Level changes affect remaining intervals.
- Steady Profile: A 20-interval workout including a warm-up, followed by a selected intensity level for the duration. Level changes affect remaining intervals.
Options During Workout Mode
- Changing Step Rate/Level: Use the [Up/Down Buttons] to adjust the level.
- Pausing Workout: Stop stepping to pause. A countdown timer begins. Resume by stepping again.
- End of Workout: The workout ends when the goal is reached or the pause timer reaches zero. Total workout statistics are displayed.
Program Upload
A Bluetooth-connected device can upload a program to the console from a compatible app, potentially including user information like age and weight.
- In an app interface, select 'Upload Program to Display' and choose the program. The console will switch to the appropriate screen. (Note: If done during a workout, the display will not respond.)
- The app uploads the program. Pressing 'Cancel' returns to the home screen and removes uploaded information.
- Once loaded, press the green start button to proceed to the setup screen. (Note: Console returns to home screen after 30 seconds or if cancelled.)
- If the program fails to load, an error screen appears for 5 seconds before returning to the home screen. Check the app for error details.
- User information (age, weight, gender) may be adjusted on the setup screen, or press 'GO' to begin the program.
Maintenance Mode - LCD OpenHub Console
Maintenance Mode allows access to service and diagnostic information and adjustment of program default parameters.
Entering Maintenance Mode:
- Press and hold the [Up Key], [Down Key], and [OK Key] together.
- A beep will sound, and "MAINTENANCE MODE" will display.
- Release all keys. "SERIAL NO #####" will display.
Available Keys in Maintenance Mode:
- Level Keys: Adjust displayed parameter values up/down by 1 unit. These keys do not save the new value.
- Numeric Keypad: Enter specific values for numeric parameters. These keys do not save the new value.
- OK Key: Updates (saves) parameter values and exits Maintenance Mode.
Note: To exit without saving, press the QUICK START key.
Adjustable Items in Maintenance Mode:
| Item | Min | Max | Default | Notes |
|---|---|---|---|---|
| SW VERSION | 01.00 | 99.99 | N/A | Display software version (set by factory) |
| LCB VERSION | 01.01 | 99.99 | N/A | Load Control Board software version (set by factory) |
| SERIAL # | 0 | 65535 | N/A | Serial number (set by factory) |
| RUN HRS | 0 | 65535 | N/A | Total operating hours |
| MAINT HRS | 0 | 9999 | N/A | Total operating hours since last reset |
| FLOORS | 0 | 65535 | N/A | Total floors climbed |
| UNITS (ENGLISH/METRIC) | English | Metric | English | English = pounds, feet; Metric = kilograms, meters |
| DEFAULT TIME (5-180) | 5 | 180 | 120 | Default time used by programs |
| WEIGHT (LBS) (50-350) | 50 | 350 | 176 | Default user weight used in calorie calculations if not entered by user |
| INTENSITY (1-9) | 1 | 9 | 1 | Default starting level |
| AGE (5-99) | 5 | 99 | 40 | Default user age used if not entered by user |
| CHR PERCENT: (10-90) | 10 | 90 | 70 | |
| LANG (ENG,,,,,,) | N/A | N/A | English | Language options: English, Dutch, French, German, Portuguese, Spanish, Swedish, Italian, Katakana. |
| CSAFE (ON/OFF) | N/A | N/A | ON | Turns CSAFE function ON or OFF. |
| AUTO FAN (ON/OFF) | N/A | N/A | ON | Turns AUTO FAN function ON or OFF. |
| MODEL (STAIRCLIMBER/ STEPMILL/NTM CONFIG RQD) | N/A | N/A | NTM CONFIG REQUIRED | Set console to STAIRCLIMBER/ STEPMILL/NTM CONFIG REQUIRED. |
| PROGRAM STATS | N/A | N/A | ||
| DISPLAY TEST | N/A | N/A | 0 | Access to LCD Test function. |
| KEYPAD TEST | N/A | N/A | 0 | Access to Keypad Test function. |
| HEART RATE TEST | N/A | N/A | Access to Heart Rate System Test function. | |
| SERIAL PORT TEST | N/A | N/A | Access to Serial Port Test function. | |
| CSAFE TEST | N/A | N/A | 0 | Access to CSAFE Test function. |
| FAN TEST | N/A | N/A | 0 | Access to Fan Test function. |
| MEASUREMENTS | N/A | N/A | Access to Integral Measurements function (for use by Authorized Maintenance Technician). | |
| LAST ERROR LIST | N/A | N/A | ||
| LCB COMM | N/A | N/A | Number of times a "LCB Communication" condition occurred since last reset. | |
| STUCK KEY | N/A | N/A | Number of times a "Stuck Key" condition occurred since last reset. | |
| BACKLIGHT | 1 | 100 | 50 | |
| CONTRAST | 1 | 100 | 50 | |
| SPM OVERFLOW | N/A | N/A | Number of times machine shut down due to higher than expected step rate. | |
| MAX SPM | 110 | 140 | 120 | |
| KEY REPEAT | ON | OFF | ON | Turns KEY REPEAT function ON or OFF. |
Maintenance Mode - Touchscreen
To enter maintenance mode on a 15"-19" Capacitive Touch Embedded display, press the top left corner, then top right, then top left again.
To enter maintenance mode on a 10" touchscreen display, press the top left corner, then top right corner, then the Logo.
Touchscreen maintenance menus offer similar options to LCD displays, plus touchscreen calibration and background image upload.
Adjustable Items (Touchscreen):
| Item | Min | Max | Default | Notes |
|---|---|---|---|---|
| SET DEFAULTS | N/A | N/A | Select to restore console defaults. | |
| CLEAR ERRORS | N/A | N/A | Select to clear error logs. | |
| RESET CONSOLE | N/A | N/A | Resets Console to default factory settings. | |
| UPDATE SW | N/A | N/A | Updates console software from USB. | |
| SPEED SCROLL | 1 | 10 | 5 | Scrolling speed of the display (1 is fastest). |
Maintenance Tools
Performing maintenance may require basic or specialty tools. Recommended tools include:
- Metric Allen Key Set
- Metric Open-Ended Wrench Set
- Large Adjustable Crescent Wrench
- Metric Socket Set
- Screwdriver Set, Phillips
- Screwdriver Set, Flat
- Multi-Meter
- USB - Flash Drive
- Torque Wrench
- Zip Ties
- Loctite 680
MAINTAIN ALL EQUIPMENT: Preventative maintenance is key to smooth operation and safe condition. Failure to perform maintenance may lead to unsafe operation. Inspect and maintain equipment at regular intervals as per the schedule in this manual.
Maintenance Schedule
The StairMaster 8G is designed for heavy usage with minimal maintenance. Regular daily, weekly, and monthly preventive maintenance routines are outlined below.
The safety and integrity of the machine depend on regular examination and repair. The owner is responsible for ensuring regular maintenance. Worn or damaged parts must be replaced immediately, or the equipment removed from service until repair.
| Daily | Weekly | Monthly | Bi-Annually | |
|---|---|---|---|---|
| General Maintenance | ||||
| Check Safety & Warning Labels | ✔️ | |||
| Spot Check Step Chains | ✔️ | |||
| Tension Alternator Belt¹ | ✔️ | |||
| Lubrication | ||||
| Drive Chains² | OR EVERY 300 HOURS | |||
| Bearing Plates³ | ✔️ | |||
| Pillow Block Bearings⁴ | ✔️ | |||
| Cleaning | ||||
| Clean Console⁵ | ✔️ | |||
| Clean Side Covers⁶ | ✔️ | |||
INSPECTION: Inspect the frame for rust, bubbling, or paint chips during daily cleaning. Perspiration can damage unpainted surfaces. Repair damaged areas with a touch-up paint kit from StairMaster (see Support & Service for order information).
Notes:
¹ Tension to 40-54 in lbs
² 30W Oil
³ Multi-Purpose Grease
⁴ Multi-Purpose Grease
⁵ Clean with a water dampened cloth & wipe dry after cleaning.
⁶ Clean exterior with soap and water or a diluted household cleaner.
Support & Service
For Technical Support, Service, Parts Orders, or Customer Service needs, contact Core Health & Fitness:
GLOBAL SUPPORT CENTER
4400 NE 77th Avenue, Suite 300
Vancouver, WA 98662
Tel: (360) 326-4090 • (888) 678-2476
Email: support@corehandf.com
Warranty Information: https://corehandf.com/warranty
To assist support, please provide the following information:
- Facility Name & Address
- Product Serial Number
- Description of Issue
Core Health & Fitness aims to provide fast, reliable support with an average hold time of 3 minutes, email responses within 1 business day, and field service requests within 48 hours.
Preventative Maintenance
Protect your product with a Core Advantage Preventative Maintenance or Extended Warranty Package. Contact your service manager for more information: servicecontracts@corehandf.com
CORE CONNECT
Core Connect is the portal for all service needs, including ordering parts, warranty registration, and accessing technical libraries. It offers 24-hour self-service access to:
- General Inquiries
- Warranty Registration
- Preventative Maintenance
- Service Requests
- Parts Orders
- Automated partner payment
- Product technical library
- Transparency on service performance
- Real time communication
To request access, visit: SUPPORT.COREHANDF.COM
