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MATRIX FITNESS | 1600 LANDMARK DRIVE COTTAGE GROVE WI 53527 USA

Toll Free 

866.693.4863 | 

matrixfitness.com

 | Fax

 608.839.8687

PART # 0000088210

REV. 1.7

UL

TR

SE

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ES

G7-S77  CALF EXTENSION

PROPER USAGE

1.  Do not exceed weight limits of the exercise device.

2.  If applicable, set safety stops to appropriate height.

3.  If applicable, adjust seat pads, leg pads, foot pads, range of motion 

adjustment, or any other type of adjustment mechanisms to a 

comfortable start position. Make certain that the adjusting mechanism is 

fully engaged to prevent unintentional movement and to avoid injury.

4.  Sit on bench (if applicable) and get into appropriate position for exercise.

5.  Exercise using no more weight than you can safely lift and control.

6.  In a controlled manner, perform exercise.

7.  Return weight to its fully-supported start position. 

MAINTENANCE CHECKLIST

ACTION

FREQUENCY

Clean Upholstery *

Daily

Inspect Cables

Daily

Clean Guide Rods

Monthly

Inspect Hardware

Monthly

Inspect Frame

Bi-Annually

Clean Machine

As Needed

Clean Grips *

As Needed

Lubricate Guide Rods †

As Needed

* Upholstery & Grips should be cleaned with a mild soap and water 

or a non-ammonia based cleaner.

† Guide rods should be lubricated with Teflon based lubricant. Apply the 

lubricant to a cotton cloth and then apply up and down the guide rods.

PRODUCT SPECIFICATIONS

TECH SPECS

Maximum User Weight

136 kg / 300 lbs.

Maximum Training Weight

182 kg / 400 lbs. 

Product Weight

261 kg / 575 lbs. 

Overall Dimensions (L x W x H)*

150 x 114 x 150 cm /

59” x 45” x 59”

* Ensure a minimum clearance width of 914 mm / 36” for access to and 

passage around MATRIX strength equipment.

WARRANTY

Valid in North America only

Frame (not coatings) *

10 years 

Weight stacks

5 years 

Pulleys

5 years

Pivot bearings

5 years

Any items not specified

3 years

Labor (excluding upholstery/cables/grips)

3 years

Upholstery/cables/grips/springs

1 year

Accessories

6 months

* Frame is defined as the welded metal base of the unit and does not include 

removable parts. 

 

Product specifications subject to change without notice.

IMPORTANT SAFETY INFORMATION

It is the sole responsibility of the purchaser of MATRIX products to instruct all 

individuals, whether they are the end user or supervising personnel on proper usage 

of the equipment.
It is recommended that all users of MATRIX exercise equipment be informed of the 

following information prior to its use. 
Do not use any equipment in any way other than designed or intended by the 

manufacturer. It is imperative that MATRIX equipment be used properly to avoid injury.

INSTALLATION

1.  STABLE AND LEVEL SURFACE: MATRIX exercise equipment must be installed 

on a stable base and properly leveled. 

2.  SECURING EQUIPMENT: Manufacturer recommends that all stationary MATRIX 

strength equipment be secured to the floor to stabilize equipment and eliminate 

rocking or tipping over. This must be performed by a licensed contractor. 

 

All anchor points must be able to withstand 750 lbs. (3.3 kN) pull-out force.

MAINTENANCE

1.  DO NOT use any equipment that is damaged and or has worn or broken parts. 

Use only replacement parts supplied by your country’s local MATRIX dealer. 

2.  MAINTAIN LABELS AND NAMEPLATES: Do not remove labels for any reason. 

They contain important information. If unreadable or missing, contact your 

MATRIX dealer for a replacement.

3.  MAINTAIN ALL EQUIPMENT: Preventative maintenance is the key to smooth 

operating equipment as well as keeping your liability to a minimum. Equipment 

needs to be inspected at regular intervals. 

4.  Ensure that any person(s) making adjustments or performing maintenance or 

repair of any kind is qualified to do so. MATRIX dealers will provide service and 

maintenance training at our corporate facility upon request. 

ADDITIONAL NOTES

This equipment should only be used in supervised areas where access and control is 

specifically regulated by the owner. It is up to the owner to determine who is allowed 

access to this training equipment. The owner should consider a user’s: degree of 

reliability, age, experience, etc.
This training equipment meets industry standards for stability when used for its 

intended purpose in accordance with the instructions provided by the manufacturer.
This training equipment is in compliance with EN 957-1 and the relevant portions of 

EN 957-2 and EN 957-4.

 

WARNING

DEATH OR SERIOUS INJURY CAN OCCUR ON THIS EQUIPMENT. FOLLOW THESE PRECAUTIONS 

TO AVOID INJURY!
1.  NEVER allow children on strength training equipment. Teenagers must be supervised at all times 

while using this equipment.

2.  All warnings and instructions should be read and proper instruction obtained prior to use. Use this 

equipment for its intended purpose ONLY. 

3.  Inspect the machine before use. DO NOT use machine if it appears damaged or inoperable.
4.  NEVER allow resistance straps, ropes or other means to be attached to this equipment, as this may 

result in serious injury. NEVER use this equipment for support during stretching, as this may result in 

serious injury. 

5.  ALWAYS use a spotter.
6.  Do not exceed the weight capacity of this equipment.
7.  Balance the weight applied to this equipment and/or any barbell. Where applicable, use retention 

devices to retain weight discs.

8.  Injuries to health may result from incorrect or excessive training. Cease exercise if you feel faint or 

dizzy. Obtain a medical exam before beginning an exercise program.

9.  Keep body, hair, clothing, and fitness accessories free and clear of all moving parts.
10.  Manufacturer recommends that all equipment be secured to the floor to stabilize and eliminate 

rocking or tipping over. Use a licensed contractor.

11.  DO NOT REMOVE THIS LABEL. REPLACE IF DAMAGED OR ILLEGIBLE.
12.  For Smith Machines: Visually ensure lifting bar catch rods are fully engaged and seated in the hooks 

before releasing the load and exiting the machine.

13.  For Smith Machines: ALWAYS set both adjustable stops to the same height when using this machine.
14.  Adjustable safety stops, if present, must be used at all times.
15.  For equipment with adjustable stops: PROPER adjustable stop height depends on the exercise 

performed.Adjust as follows:

•  Remove weight from lifting bar.
•  For squats, perform the exercise and determine the lowest comfortable position of the bar that 

ensures no spinal compression. For other exercises, perform the movement and determine the 

lowest point of bar travel that is comfortable without the bar contacting your body.

•  Position both stop catches to stop the bar at this point. Ensure that they are completely seated on 

the stop rods or catch plate.

•  Load weights onto the lifting bar and carefully perform the exercise.

16.  When adjusting any adjustable mechanism (seat position, pad location, range of motion limiter, pulley 

carriage, or any other type of adjuster), make certain that the adjusting pin is fully engaged in the hole 

to avoid injury.

17.  Keep hands and feet clear at all times from moving parts to avoid injury. 

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