Keys Fitness StrenghtTrainer ST-OBA2 User manual

Owner’s Manual ST-OBA2
Read all precautions and instructions in
this manual before using this equipment.
215-00080
08/06 Rev C

22
Table of Contents
Important Safety Information 3
Before You Start 4
Assembly 5-9
Parts List 10
Exploded View 11
Warranty Information 12

3
Prior to assembly, remove components from the box and verify that all the listed parts were
supplied.
Before using this unit or starting any exercise program, consult your physician. This is espe-
cially important for persons over the age of 35 and/or persons with pre-existing health prob-
lems. Keys Fitness Products LP assumes no responsibility for personal injury or property dam-
age sustained by or through the use of this product.
It is the owner’s responsibility to ensure that all users of this unit have read the Owner’s
Manual and are familiar with safety information and precautions.
SAFETY INFORMATION WARNING!
SAFETY PRECAUTIONS
• This Strength Trainer unit should only be used on a level surface and is intended for indoor
use only. Keys Fitness recommends an equipment mat be placed under the unit to protect the
floor or carpet and for easier cleaning.
• Wear comfortable, good-quality walking or running shoes and appropriate clothing. Do not
use this unit with bare feet, sandals, socks or stockings!
• Always examine your unit before using to ensure all parts are in working order.
• Do not leave children unsupervised near or on the unit.
• Service to your Strength Trainer unit should only be performed by an authorized service rep-
resentative, unless authorized and/or instructed by a Keys Fitness technician. Failure to follow
these instructions will void the warranty.
Important Safety Information
NOTE: Hand tighten bolts and nylon nuts until machine is fully assembled.

44
THANK YOU for making this Strength Trainer unit a part of your exercise program. Keys
Fitness and our Strength Trainer Series assures the very best in value, appearance, durability
and biomechanics.
This manual will guide you through the assembly process. If at any time you are having trou-
ble with the assembly or use of this product, then please contact us at our Keys Fitness Help
line. We have trained service technicians on site to take care of you, our valued customer.
STRENGTH TRAINER SERIES
MODEL: ST-OBA2
QUESTIONS?
CALL
1-888-340-0482
Monday-Friday
8:30-5:30 Central Time
When calling please have the following product information available:
REGISTRATION CARD
To avoid unnecessary delays in warranty parts and to insure that a permanent
record of your purchase is on file with our company, be sure to send in the war-
ranty registration card or register on-line at www.keysfitness.com within 10 days
of purchase.
Model Name :
Manufactured Date :
PO # :
Model Name Decal Location
Before You Get Started

5
Assembly
#37-M10X140X1PC
#38-M10X75X1PC
#39-M10X70X6PCS
#40-M10X25X2PCS
#42-M8X40X8PCS
#41-M8X20X4PCS
#43-20PCS(10/20mm)
#44-12PCS(8/16mm)
#45-10PCS(M10)
#46-3PCS(M8)
Assembly Hardware
Tools Required
You will need two adjustable wrenches for assembly or M10 and M8 wrenches.

6
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３
１
NOTE: Hand tighten bolts and nylon nuts until machine is fully assembled.
STEP 1:
Place the left (#1) and right (#2) uprights on the floor as illustrated. The brackets welded
down the side of each upright should be to the inside and facing each other.
Attach each end of the cross bar (#3) to the front of each upright with two bolts M10x90
(#39), four washers 10 (#15) and two nylon nuts M10 (#10). Install a rectangular reinforce-
ment plate (#18) behind each upright during this assembly.
Place the backrest adjustment bar (#10) between the uprights so that the short pin at each
end of the backrest adjustment bar is seated into the hole in a bracket.
Push a weight storage tube (#14) into the hole in the angled brace behind each upright and
secure from below with one bolt M8x20 (#41) and one washer 8 (#44).
Assembly

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STEP 2:
Push each crutch (#9) down into the top
of each upright so that the longer bar catch
at the top of each crutch is to the rear of
the bench. Secure and adjust each crutch
inside each upright using a long knob bolt
M12x80mm (#30) installed from the rear of
each upright.
Push the threaded end of each safety
hook (#15#16) through the small welded
tube at the top rear of each crutch as illus-
trated. Secure each safety hook with one
nylon nut M8 (#46)
7
Assembly
NOTE: Hand tighten bolts and nylon nuts until machine is fully assembled.
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STEP 3:
Attach the front base (#4)
to the mainframe (#7) with
two bolts M10X25 (#40),
four washers 10 (#43) and
two nylon nuts M10 (#45).
Attach the mainframe/front
base assembly to the center
of the cross bar (#3) using
two bolts M10x75 (#38),
four washers 10 (#43) and
two nylon nuts M10 (#45).
Install the oval reinforcement
plate (#17) on the underside
of the cross bar during this
assembly.

8
Assembly
NOTE: Hand tighten bolts and nylon nuts until machine is fully assembled.
４２
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１１
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８
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STEP 4:
Attach the backrest tubes (#8) to the small welded tube across the top of the mainframe
(#7). Push the backrest fixed bar (#16) into the hole of the backrest tubes as illustrated. Push
a bolt M10x140 (#37) with a washer 10 (#43) through the hole of the backrest tube and then
through the small welded tube across the top of the mainframe. Continue to push the bolt
through the side hole of the other backrest tube, through the hole nearest the end of the other
seat tube, then out the other side. Secure with one washer 10 (#43) and one nylon nut M10
(#10).
Attach the backrest pad (#21) to the backrest tubes using four bolts M8x40 (#42) and four
washers 10 (#43). The backrest pad can be put into an upright, military position by pushing
the long lock pin (#12) through the hole in the mainframe and resting the bottom of the back-
rest tubes against the back of the pin.
Attach the seat pad (#20) with the wider end to the rear, to the top of the seat tubes using
four bolts M8X40 (#42) and four washers 10 (#43).

9
NOTE: Hand tighten bolts and nylon nuts until machine is fully assembled.
Assembly
３３
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STEP 5:
Attach the leg developer (#5) between the brackets on the front of the front base ( #4) with
one bolt M10X75 (#38), two washers 10 (#43) and a nylon M10 (#45) nut.
Push a roller tube (#13) through the upper and lower holes in the leg developer and through
the tube welded to the back of the front base. Push a foam roll onto each side of each tube.
Push the threaded end of the leg developer safety hook (#35) through the small welded tube
across the front of the front base secure with one small nylon nut M8 (#46).
Attach the arm curl pad to the arm curl post (#6) with two bolts M8x20 (#41) and two wash-
ers 8 (#44). Push the arm curl post down into the top of the front base, adjust and secure
with one small knot bolt M12x60mm (#30) installed from behind the front base.
Congratulations!!! You have completed assembly of your ST-OBA2.

1010
Ref # Part # Descri
p
tion
Q
t
y
1 223-00829 UPRIGHT, LEFT ST-OBA2 1
2 223-00830 UPRIGHT, RIGHT ST-OBA2 1
3 223-00831 CROSS BAR, ST-OBA2 1
4 223-00832 FRONT BASE, ST-OBA2 1
5 223-00833 LEG DEVELOPER, ST-OBA2 1
6 223-00834 ARM CURL OIST, ST-OBA2 1
7 223-00835 MAIN FRAME, ST-OBA2 1
8 223-00836 BACKREST TUBE, ST-OBA2 2
9 223-00837 CRUTCH, ST-OBA2 2
10 210-00173 BACKREST ADJUSTMENT BAR, ST-OBA2 1
11 210-00174 BACKREST FIXED BAR, ST-OBA2 1
12 210-00047 LONG LOCK PIN ST-OBA/ST-OBA2 1
13 219-00477 ROLLER FOAM TUBE, ST-OBA2 3
14 219-00474 WEIGHT STORAGE, ST-OBA2 2
15 210-00165 LEFT SAFETY HOOK, ST-OBA/ST-OBA2 1
16 210-00166 RIGHT SAFETY HOOK, ST-OBA/ST-OBA2 1
17 219-00475 OVAL REINFORCEMENT PLATE, ST-OBA2 1
18 219-00476 RECTANGULAR PLATE, ST-OBA2 2
19 228-00168 SEAT PAD, ST-OBA2 1
20 228-00169 BACKREST PAD, ST-OBA2 1
21 228-00170 ARM CURL PAD, ST-OBA2 1
22 219-00114 ROLLER FOAM ST-OBA/ST-OBA2 6
23 206-00348 SQUARE PLUG, 25X50MM 6
24 206-00350 ROUND CAP 1", M-OB/M-OBA/ST-OBA 1
25 219-00109 OLYMPIC ADAPTER ST-OBA/ST-OBA2 1
26 206-00249 RECT. OUTER PLUG 50 1
27 206-00069 SQUARE INNER PLUG, 44MM 3
28 206-00223 SQUARE INNER PLUG 25 9
29 206-00244 SQUARE INNER PLUG, 20X40 2
30 210-00135 KNOB BOLT, M12X60 3
31 202-00630 ROUND OUTER CAP, 25MM 1
32 202-00631 ROUND OUTER CAP, 19MM 6
33 219-00478 SPRING COLLAR, 25 1
34 219-00479 SPRING COLLAR, 48 1
35 210-00053 LEG DEV SAFETY HOOK 1
36 202-00630 ROUND OUTER CAP, 25MM 2
37 202-00106 BOLT M10*140 1
38 202-00081 BOLT, M10*75 1
39 202-00083 BOLT, M10*70 6
40 202-00088 BOLT, M10*25 2
41 223-00830 UPRIGHT, RIGHT ST-OBA2 4
42 202-00291 BOLT, M8X40 8
43 202-00312 WASHER, 10/20 20
44 202-00313 WASHER 8/16 12
45 202-00091 NYLON NUT, M10 10
46 202-00268 NUT M8 3
47 202-00632 METAL BUSHING, ST-OBA2 2
# 215-00080 MANUAL ST-OBA2 1
ST-OBA2 Parts List Rev
A
Parts List