NOTE:
Please read all instructions
carefully before using this
product
Table of Contents
Safety Notice
MARCY AB BENCH
AB 4050
Hardware Identifier
Assembly Instruction
Parts List
Warranty
Ordering Parts
Model
AB 4050
Retain This
Manual for
Reference
06-19-03
OWNER'S
MANUAL
IMPEX FITNESS PRODUCTS
14777 DON JULIAN RD., CITY OF INDUSTRY, CA 91746
Tel: (800) 999-8899 Fax: (626) 961-9966
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IMPORTANT SAFETY NOTICE
PRECAUTIONS
This exercise machine is built for optimum safety. However, certain precautions apply
whenever you operate a piece of exercise equipment. Be sure to read the entire manual
before you assemble or operate your machine. In particular, note the following safety
precautions:
1. Keep children and pets away from the machine at all times. DO NOT
leave children unattended in the same room with the machine.
2. Only one person at a time should use the machine.
3. If the user experiences dizziness, nausea, chest pain, or any other abnormal
symptoms, STOP the workout at once. CONSULT A PHYSICIAN IMMEDIATELY.
4. Position the machine on a clear, leveled surface. DO NOT use the machine
near water or outdoors.
5. Keep hands away from all moving parts.
6. Always wear appropriate workout clothing when exercising. DO NOT wear
robes or other clothing that could become caught in the machine. Running
or aerobic shoes are also required when using the machine.
7. Use the machine only for its intended use as described in this manual. DO
NOT use attachments not recommended by the manufacturer.
8. Do not place any sharp object around the machine.
9. Disabled person should not use the machine without a qualified person or
physician in attendance.
10. Before using the machine to exercise, always do stretching exercises to
properly warm up.
11. Never operate the machine if the machine is not functioning properly.
WARNING: BEFORE BEGINNING ANY EXERCISE PROGRAM, CONSULT YOUR
PHYSICIAN. THIS IS ESPECIALLY IMPORTANT FOR INDIVIDUALS OVER THE AGE
OF 35 OR PERSONS WITH PRE-EXISTING HEALTH PROBLEMS. READ ALL
INSTRUCTIONS BEFORE USING ANY FITNESS EQUIPMENT.
IMPEX INC.
ASSUMES NO RESPONSIBILITY FOR PERSONAL INJURY OR PROPERTY DAMAGE
SUSTAINED BY OR THROUGH THE USE OF THIS PRODUCT.
SAVE THESE INSTRUCTIONS.
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HARDWARE PACK
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ASSEMBLY INSTRUCTION
Tools Required Assembling the Machine: Two Adjustable Wrenches and Allen
Wrenches
NOTE: It is strongly recommended this machine be assembled by two or more people
to avoid possible injury.
STEP 1 (See Diagram 1)
A.) Attach the Main Frame (#1) to the Front & Rear Stabilizers (#2 & 3). Secure each end
with two M10 x ¾” Allen Bolts (#36) and ∅ ¾” Washers (#42). Attach a Lock Knob (#23)
to the hole underneath the Main Frame.
B.) Slide the Sliding Block (#8) onto the Incline Adjustment Bar (#9). Align the hole then
secure it with a Knob Lock (#23) to hold the Sliding Block in position.
C.) Attach the Incline Adjustment Bar to the brackets on the Main Frame. Secure each end
with one M10 x 2 ½” Carriage Bolt (#35), ∅ ¾” Washer (#42), and M10 Aircraft Nut (#44).
DIAGRAM 1
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STEP 2 (See Diagram 2)
A.) Attach four Bushings (#27) to a Seat Support Frame (#6).
B.) Attach a Backrest Support (#7) to the rear of the Seat Support Frame (#6). Align the holes
and secure them with one M10 x 1 ¾” Allen Bolt (#37) and ∅ ¾” Washer (#42). Repeat
the same procedure to install the other side.
C.) Attach two Bushings to the pivot on the Sliding Block (#8). Attach two Bushings to each
Backrest Supports (#7). Align the holes and secure them with one M10 x 6 ¾” Allen Bolt
(#38), two ∅ ¾” Washers (#42), and one M10 Aircraft Nut (#44). Do not over tighten the
nut and bolt. The Supports need to swivel on the Bolt.
D.) Attach two Bushings to the pivot on the Main Frame (#1). Loosen and pull the Lock Knob
on the Sliding Block (#8). The Sliding Block needs to be able to slide on the Chromed
Incline Adjustment Bar (#9). Align the two Seat Support Frames (#6) to both ends of the
pivot on Main Frame. Secure them with one M10 x 8 ¼” Allen Bolt (#39), two ∅ ¾”
Washers (#42), and one M10 Aircraft Nut (#44).
E.) Use the Lock Knob on the Sliding Block (#8) to adjust and secure the backrest incline
position.
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STEP 3 (See Diagram 3)
A.) Place the Backrest Board (#14) onto the Backrest Supports (#7). Secure it with four M8
x 2” Allen Bolts (#40) and ∅ 5/8” Washers (#43).
B.) Place the Seat Pad (#13) onto the Seat Support Frames (#6). Secure it with four M8 x
2” Allen Bolts (#40) and ∅ 5/8” Washers (#43).
DIAGRAM 3
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STEP 4 (See Diagram 4)
A.) Attach the Leg Developer (#5) to the open bracket on the Main Frame (#1). Secure it
with an Axle (#17), two M10 x ¾” Allen Bolts (#36), and two ∅ ¾” Washers (#42).
B.) Insert one Foam Tube (#10) halfway through the hole on the Main Frame. Insert two
Foam Tubes halfway through the holes on the Leg Developer (#5). Push six Foam
Rolls (#24) onto the Tubes from both ends. Plug six Foam Roll End Caps (#25) into
the Tubes.
C.) Slide the Olympic Sleeve (#20) onto the weight post on the Leg Developer. Attach a
Spring Clip (#22) to the Sleeve.
DIAGRAM 4
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STEP 5 (See Diagram 5)
A.) Attach the Arm Curl Pad (#15) to the Arm Curl Stand (#4). Secure it with two M8 x 5/8”
Allen Bolts (#41) and two ∅ 5/8” Washers (#43). Insert the Arm Curl Stand into the front
opening on the Main Frame (#1). Use the Lock Knob to hold the desired Arm Curl height.
B.) Attach the Curl Bar Support Frame (#11) to the open bracket on the Leg Developer (#5).
Lock it with a L-shaped Pin (#21).
C.) Remove the Pin, Curl Bar Handle and Arm Curl when using the Leg Developer to exercise.
DIAGRAM 5
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PARTS LIST
KEY NO.
1
DESCRIPTION
Main Frame
Q’ty
1
2
Front Stabilizer
1
3
Rear Stabilizer
1
4
5
Arm Curl Stand
Leg Developer
1
1
6
7
8
Seat Support Frame
Backrest Support
Sliding Block
2
2
1
9
Incline Adjustment Bar
Foam Tube
1
3
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Curl Bar Support Frame
Curl Bar Handle
Seat Pad
Backrest Board
Arm Curl Pad
1
1
1
1
1
2
1
2
2
1
1
1
2
6
6
2
16
1
1
1
2
12
3
4
2
6
Curl Bar Handle Grip
Axle
Ø 2 3/8” Bushing
Ø 1 ½” Bushing
Olympic Sleeve
L-shaped Lock Pin
Spring Clip
Lock Knob
Foam Roll
Foam Roll End Cap
Ø ¾” x ½” Bushing
Bushing
3 1/8” x 1 5/8” End Cap
Ø 1” Cone-shaped End Cap
Ø 1” End Cap
1 5/8” x 2 3/8” End Cap
1 5/8” x ¾” End Cap
2” Sliding Block Sleeve
Stabilizer End Cap
M10 x 2 ½” Carriage Bolt
M10 x ¾” Allen Bolt
M10 x 1 ¾” Allen Bolt
M10 x 6 ¾” Allen Bolt
M10 x 8 ¼” Allen Bolt
M8 x 2” Allen Bolt
M8 x 5/8” Allen Bolt
Ø ¾” Washer
2
1
1
8
2
14
10
4
Ø 5/8” Washer
M10 Aircraft Nut
10
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IMPEX INC.
LIMITED WARRANTY
IMPEX Inc. ("IMPEX") warrants this product to be free from defects in workmanship and material, under normal use
and service conditions, for a period of two years on the Frame from the date of purchase. This warranty extends
only to the original purchaser. IMPEX's obligation under this Warranty is limited to replacing or repairing, at
IMPEX's option.
All returns must be pre-authorized by IMPEX. Pre-authorization may be obtained by calling IMPEX Customer
Service Department at 1-800-999-8899. All freights on products returned to IMPEX must be prepaid by the
customer. This warranty does not extend to any product or damage to a product caused by or attributable to freight
damage, abuse, misuse, improper or abnormal usage or repairs not provided by an IMPEX authorized service
center or for products used for commercial or rental purposes. No other warranty beyond that specifically set forth
above is authorized by IMPEX.
IMPEX is not responsible or liable for indirect, special or consequential damages arising out of or in connection with
the use or performance of the product or other damages with respect to any economic loss, loss of property, loss of
revenues or profits, loss of enjoyments or use, costs of removal, installation or other consequential damages or
whatsoever natures. Some states do not allow the exclusion or limitation of incidental or consequential damages.
Accordingly, the above limitation may not apply to you.
The warranty extended hereunder is in lieu of any and all other warranties and any implied warranties of
merchantability or fitness for a particular purpose is limited in its scope and duration to the terms set forth herein.
Some states do not allow limitations on how long an implied warranty lasts. Accordingly, the above limitation may
not apply to you.
This warranty gives you specific legal right.
You may also have other rights which vary from state to state.
IMPEX INC.
14777 Don Julian
City of Industry, CA 91746
ORDERING REPLACEMENT PARTS
Replacement parts can be ordered by calling our Customer Service Department toll-free at 1-800-999-8899 during
our regular business hours: Monday through Friday, 9 am until 5 pm Pacific standard time.
When ordering replacement parts, always give the following information.
1.
2.
3.
4.
Model
Description of Parts
Part Number
Date of Purchase
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