Cortex SM20 User manual

SM20 Multi Rack
Home Gym (Half Rack,
Smith and Cable Machine)
USER MANUAL
Product may vary slightly from the item pictured due to model upgrades.
Read all instructions carefully before using this product.
Retain this owner’s manual for future reference.
NOTE:
This manual may be subject to updates or changes. Up to date manuals are available through our
website at www.lifespanfitness.com.au

3
TABLE OF
CONTENTS
I. Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 04
II. Care Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 05
III. Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06
IV. Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 09
V. Exercise Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
VI. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
VII. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
TABLE OF CONTENTS |

4
I. IMPORTANT SAFETY
INSTRUCTIONS
WARNING: Read all instructions before using this machine.
To ensure your safety, read the following precautions before using this product.
1. Please read, study and understand the instructions and all warning labels before use.
(It is recommended to be familiar with the normal operation and use methods of the device before
using this product. Information is available on this manual and at local retailers).
2. Please keep this manual and ensure that all the warning labels are clear and complete.
3. This product is recommended to install by more than two people.
4. Please consult your doctor’s advice before starting the exercise.
5. Please ensure safety when the children are present.
6. Be careful when using it with children present.
7. Please check any signs of wear of the wire rope regularly. If there is wear, it may cause some danger
to you.
8. Please keep your hands, limbs and clothes stretch to use the device.
9. Please note any signs of machinery that may occur, including part wear, loose hardware, and welding
cracks. Stop using the device with the above signs immediately and contact the after-sales service
department of our company.
10. You can complete the assembly with a wrench, or an inner hexagon wrench.
11. The user weight of this product shall not exceed 100kg.
12. The product is subject to change without notice and the final interpretation belongs to the Division.
| IMPORTANT SAFETY INSTRUCTIONS

5
II. CARE INSTRUCTIONS
•Lubricate moving joints with silicon spray after periods of usage.
•Be careful not to damage plastic or metal parts of the machine with heavy or sharp objects.
•The machine can be kept clean by wiping it down using dry cloth.
•Check and adjust the tension of wire rope on a regular basis.
•Regularly check all moving parts and make sure there are signs of wear and damage, if any the use of
the device must be stopped immediately and contact our after-sales department.
•During inspection, it is necessary to make sure that all bolts and nuts are completely fixed. If any bolt
or nut connection is loosened, please re-tighten.
•Check weld for cracks.
•Failure to perform daily maintenance may result in personal injury or equipment damage.
CARE INSTRUCTIONS |

6| PARTS LIST
III. PARTS LIST
No. Description Qty
1Welded Rear Horizontal 1
Stick Ground Pipe
2Welded Right Floor Pipe 1
3Welded Left Floor Pipe 1
4Welded Barbell Rack Frame 1
5Welded Left Anterior Vertical Tube 1
6Welded Right Front Vertical Tube 1
7Welded Rear Vertical Pipe 2
8Welded Upper Left Tube 1
9Welded Upper Right-side Tube 1
10 25 Pipe Guide Rod 2
11 Welded Horizontal Pipe 1
of Hanging Ring Sheet
12 Selection Lever 1
13 Small Single Pulley Frame 1
14 Welded Front Upper Beam Pipe 1
15 Welded Upper Horizontal Pipe 1
16 Left Primer 1
17 Right Primer 1
18 Welded Hold Rod 1
19 Smith Guide Rod 2
20 Welded Sliding Sleeve 2
21 Left Safety Bar 1
22 Right Safety Bar 1
23 Barbell Sleeve 2
24 Welded Left Adjustment U-seat 1
25 Welded Right Adjustment U-seat 1
26 Welded Bird Pulley Box 2
27 Rope Buckle Silk 2
28 Welded Pattern Plate 1
29 Landmine Post 1
30 Barrel Steering Frame 1
31 Welded Double U-seat 1
32 Double Bar Left Hand 1
33 Double Bar Right Hand 1
34 Left Shelf 1
No. Description Qty
35 Right Shelf 1
36 Left Protection Frame 1
37 Right Protection Frame 1
38 Welded Sleeve Hanging Rod 4
39 Landmine Handle 1
40 Straight Row Bar Attachment 1
41 Curl Bar Handle 1
42 Counterweight Block (Large) 6
43 Counterweight Block (Small) 1
44 Slider Adjustment Sheet 4
45 Internal Casing 2
46 Ball Stud 2
47 Sleeve 6
48 Spring Collar 4
49 Large Shock Pad 6
50 Weight Selection Pin 1
51 M10 Knob 1
52 Big Pulley 20
53 Small Pulley 1
54 Type C Buckle 2
55 Hand Pull Ring 2
56 Wire Rope A 2
57 Wire Rope B 1
58 25 Short Light Axis 20
59 Bolt M10X70 20
60 Bolt M10X90 12
61 Bolt M10X20 12
62 Bolt M10X45 21
63 Φ10 Flat Gasket 122
64 M10 Nut 57
65 Φ10 Flat Pad 2
66 Bolt M10X16 20
67 Bolt M8X16 4
68 Bolt M8X40 2
69 Bolt M10X80 2

7PARTS LIST |
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
26 27 28 29 30
31 233 34 35
36 37 38 39 40
41 42 43 44 45
46 47 48 49 50

8| PARTS LIST
51 52 53 54 55
56 57 58 59 60
61 62 63 64 65
66 67 68 69

9ASSEMBLY INSTRUCTIONS |
IV. ASSEMBLY INSTRUCTIONS
ATTENTION:
1. The gasket shall be placed at both ends of the bolts (against the bolt head and nuts), unless
otherwise stated.
2. Preliminary assembly is hand tightening of all bolts and nuts and hand tightening with the
wrench for complete assembly.
3. Some spare parts have been pre-assembled by the factory.
4. It is strongly recommended this machine to be assembled by two or more people to avoid
possible injury.
1. Insert the bolts (#59), flat spacers (#63) onto (#3 and #2) as shown.
2. Install (#2) to (#1) as shown and secure with bolts (#60), flat spacers (#63) and nut (#64).
3. Install (#3) to (#1) as shown, on the other side (#3) and secure with bolts (#60), flat spacers (#63)
and nut (#64).
STEP 1
2
1
60
63
59
4
64
59
3

10
1. Install (#5) and (#7) to (#2) and tighten with flat spacers (#63) and nut (#64).
2. Place (#9) in the middle of (#5) and (#7) and secure with bolts (#59), flat spacers (#63), and nut
(#64) as shown.
3. Attach (#58) and (# 66) to (#5) as shown in Fig.
4. Repeat on the other side for part (#6), (#7) and (#8).
STEP 2
| ASSEMBLY INSTRUCTIONS
59
63
9 59 63 64
63
5
66
64
63
58
6
7
7
8
64

11ASSEMBLY INSTRUCTIONS |
1. Install (#10) into the (#1) hole as shown, then (#49) into (#10). Add the counter block (#42) into (#10)
(Note that the counter block groove portion is uniformly down) and insert (#42) into the middle hole
for (#12).
2. Put the counterweight block (small) (#43) into (#10) and then place (#11) in (#10). Finally add (#13)
into (#12).
3. Attach (#47) to (#11) as shown. Part (# 48) goes into (# 47) when you load additional weight plates of
your own (additional weight plate sold separately). NOTE: The direction of the weight block (plug the
weight pin) must go down.
STEP 3
10
13
11
43
12
50
42
49
47
48

12
1. Attach (#15) onto (#10), then both sides to (#8) and (#9). Secure with bolts (#59), flat spacers (#63),
nut (#64). After, secure screw (#68) into (#10).
2. Install (#16) and (#17) onto (# 4) and secure with a bolt (#61) and flat spacer (#63).
3. The loaded (#14) sides were connected to (#5) and (#6), respectively, and fixed with bolts (#60), flat
spacers (#63), and nut (#64).
STEP 4
| ASSEMBLY INSTRUCTIONS
15
68
59
63
10
64
63
60
14
16
17

13ASSEMBLY INSTRUCTIONS |
1. Attach (#49) large shock pad, (#21) left safety bar, another (#49) and (#20) welded sliding sleeve onto
(#19), repeat on the other side.
2. Install (#19) and (#20) into (#18) welded hold rod. Then Insert (#19) into (#5) and (#6) holes, then
secure the upper end with bolts (#60) and flat spacer (#63).
3. Secure (#23) barbell sleeve onto (#18) and secure with bolts (#61) and flat spacer (#65). Add the
spring collar (#48) to (#23).
4. Attach (#25) to (#5) as shown in the figure and secure with (#46) ball stud. Place (#45) internal
casing into (#26) then install (#26) to (#25) using (#27), flat spacer (#63) and nut (#64). Repeat on the
other side.
STEP 5
60
63
19
61
65
48
23
20
26
64
25
27 45
49
21
49
46
18
24
22

14 | ASSEMBLY INSTRUCTIONS
NOTE: Be sure to install the wire rope before installing the pulley.
57
57
56
56
57

15ASSEMBLY INSTRUCTIONS |
NOTE: Be sure to install the wire rope before installing the pulley
57 57 57
57
53
57
52
44
56
56
67
27
57
57
55
54
67
57
67

16 | ASSEMBLY INSTRUCTIONS
1. Install (#28) onto (#2) and secure with bolts (#60), flat spacers (#63) and nut (#64).
2. Install (# 31) onto (#3) and secure with bolts (#60), flat gasket (#63) and nut (#64). Then secure (#30)
onto (#31) and (# 29) with bolts (#69), flat gasket (#63) and nut (# 64). Finally, screw (#51) into (#29).
STEP 6
63
64
28
60
60
63
31
69
64
29
69 51 30
64

17ASSEMBLY INSTRUCTIONS |
1. Install (#38) to (#7) as shown and secure with bolts (#61) and flat spacers (#63). Then insert (#47)
onto (#38).
2. Attach (#32), (#35), and (#36) to (#6) and repeat on the other side.
Tighten all bolts with a Wrench.
1. Your device is now fully assembled.
2. Please check that all pulleys and wire ropes have been secured before proper use.
3. Adjust the wire rope according to your exercise.
STEP 7
47
38
63
61
41
40
37
36
32
35
39
34
33

18
V. EXERCISE GUIDE
PLEASE NOTE:
Before beginning any exercise program, consult your physician. This is important especially if you are
over the age of 45 or individuals with pre-existing health problems.
The pulse sensors are not medical devices. Various factors, including the user’s movement, may
affect the accuracy of heart rate readings. The pulse sensors are intended only as an exercise aid in
determining heart rate trends in general.
Exercising is great way to control your weight, improving your fitness and reduce the effect of aging and
stress. The key to success is to make exercise a regular and enjoyable part of your everyday life.
The condition of your heart and lungs and how efficient they are in delivering oxygen via your blood to
your muscles is an important factor to your fitness. Your muscles use this oxygen to provide enough
energy for daily activity. This is called aerobic activity. When you are fit, your heart will not have to work
so hard. It will pump a lot fewer times per minute, reducing the wear and tear of your heart.
So as you can see, the fitter you are, the healthier and greater you will feel.
WARM UP
Start each workout with 5 to 10 minutes of stretching and some light exercises. A proper warm-up
increases your body temperature, heart rate and circulation in preparation for exercise. Ease into your
exercise.
After warming up, increase the intensity to your desired exercise program. Be sure to maintain your
intensity for maximum performance. Breathe regularly and deeply as you exercise.
| EXERCISE GUIDE

19EXERCISE GUIDE |
COOL DOWN
Finish each workout with a light jog or walk for at least 1 minute. Then complete 5 to 10 minutes of
stretching to cool down. This will increase the flexibility of your muscles and will help prevent post-
exercise problems.
WORKOUT GUIDELINES
This is how your pulse should behave during general fitness exercise. Remember to warm up and
cool down for a few minutes.
TARGET ZONE
MAXIMUM
85%
70%
COOL DOWN
AGE
HEART RATE
200
180
160
140
120
100
80
20 25 30 35 40 45 50 55 60 65 70 75

20
VI. MAINTENANCE
MAINTENANCE METHOD:
To extend the service life of the device, the parts must be lubricated on time. The product has been
initially lubricated before leaving the factory, but lubrication is required between the guide rod and
the weight plate over time.
1. Pulley and wire ropes should be regularly checked for signs of wear.
2. Check and adjust the tension of the wire rope regularly.
3. Check all moving parts regularly. If there is a damaged part, stop using the device immediately and
contact the store.
4. Ensure all bolts and nuts are fully fixed and re-tighten them when it is loose.
5. Check the welding for cracks.
6. Failure to perform routine maintenance may cause personal injury or equipment damage.
7. Ensure any handle attachments are fully secured before use to prevent from injury.
NOTE: Silicon oil/spray is recommended for lubrication.
| MAINTENANCE