PRx Performance Murphy Rack Fold Up Manuel utilisateur
For further assistance and installation video:
prxperformance.com/pages/murphy-rack
The 90” Fold-Up Murphy Rack is made by the creators of the original Prole®
Folding Rack at PRx Performance®and is Patented and Patent Pending. PRx
Performance Retractable Wall-Mounted Exercise Rack System, also known as
the Prole Rack and Prole PRO:
U.S. Patent No. 9,333,387
U.S. Patent No. 9,409,048
U.S. Patent No. 9,498,670
U.S. Patent No. 9,649,525
U.S. Patent No. 9,844,691
An up-to-date record of patents and patent pending items can be found at:
prxperformance.com/pages/prx-performance-patents-and-trademarks
Fold-Up Murphy Rack
90” Squat Rack with Extended Pull-Up Bar
Powered by
2 (701) 566-0452
1C
10
5
6
8
17
1B
98
7
3E
11
16
4D
4B 18
12
2A
14
2B
16
2C
1A
3A
3B 3E
3D
15
4A
4C
13
3C
Wall Bracket – Middle
Extended PUB – Right Support
Upright – Top
No.
1A
Qty.
2
Description
Wall Bracket – Left Ear
1B 2
1C 2Wall Bracket – Right Ear
2A 2
2B 4Upright – Plate
2C 2Upright – Bottom
3A 4Linkage Arm
3B 4Linkage Arm Shock
3C 8M6 x 16 Allen Bolt
3D 8M6 Nylock Nut
3E 4M8 Nylock Nut
4A 1
Extended PUB – Left Support
4B 2
Extended PUB – Bars
4C 1
Extended PUB – Arms
4D 2
M8 x 65 Lag Screw5 8
8M8 Flat Washer
8Plastic Spacer
6M16 x 35 Hex Head Bolt
M16 Nylock Nut
M16 x 80 Hex Head Bolt
No.
Qty.
22
Description
M16 Flat Washer
12
2M16 x 85 Hex Head Bolt
4
6
2J-cups
7
2Footplugs
8
2Locking Pins
9
10
11
12
13
14
15
16
40M6 x 8 Tap Screws
17
2M8 x 30 Hex Head Bolt
18
2M8 x 25 Allen Bolt
90” Fold-Up Murphy Rack with Extended Pull-Up Bar (PUB)
All Parts & Tools Needed
Required Tools
Cordless drill
3/16” drill bit
Stud nder
Level
Tape measure
Pencil
Plumb line
Ratchet
24mm Socket
24mm Open-ended wrench
13mm Socket
12mm Open-ended wrench (2)
5mm Allen wrench (or 3/16”)
4mm Allen wrench (or 5/32”)
WARNING: SERIOUS INJURY OR DEATH
COULD OCCUR IF PRECAUTIONS ARE
NOT OBSERVED. PLEASE SEE PAGE 13
Rack Specications
(WxHxD)
Folded Up:
52” x 108” x 22.5”
Folded Down:
52” x 90” x 39.5”
Weight Capacity:
1000 lbs
Getting started
1. Assemble all the tools listed on page 2 and clear your working space
2. Measure your ceiling height to ensure your space can accommodate the Rack
*If you nd that your ceiling is not 108” please check page 12 for modied installation instructions
or contact PRx Performance: [email protected] or 1-701-566-0452
3. Recruit a work partner to assist with steps that require lifting and holding the Rack
38.25”
20.25”
21.75”
88.00”
108.00”
19.00”
4 (701) 566-0452
Assemble Wall Brackets
1. Attach one Left Wall Bracket Ear (1A) and one Right Wall Bracket Ear (1C) to the Middle Wall Bracket
(1B) using four M6 x 8 Tap Screws (16)
2. Be sure the ears on 1A and 1C are placed behind the Middle Wall Bracket (1B). When secured, the
back of the wall bracket should be ush, and the ears should be pointing downward
3. Repeat with other Wall Bracket
4. Once the brackets are fully assembled, these will be referred to as the upper and lower wall brackets
(they are interchangeable)
1A
16
1B 1C
Assemble Uprights
1. Place an Upright Plate (2B) inside of a Bottom Upright (2C) piece,
align the ve holes of the two pieces, loosely secure the Upright Plate
to the Bottom Upright using four M6 x 8 Tap Screws (16). Be sure that
the largest hole in the Uright Plate (2B) will be inserted into the Bottom
Upright (2C)
The difference between the Bottom Upright (2C) and the Top Upright
(2A) is that the Bottom Upright has a foot plug
2. Repeat with Top Upright (2A)
3. Slide the two upright pieces together so the Upright Plates (2B) align with
the holes of the opposite uprights. Secure the Upright Plates (2B) to both
the Top (2A) and Bottom (2C) Upright pieces using eight more M6 x 8 Tap
Screws (16)
4. Tighten all M6 x 8 Tap Screws (16)
5. Repeat with next upright
2A
2C
16
2B
2B
Starting Standard Installation
Standard installation is for ceilings 108” or taller. If your ceiling is shorter than
108” please see page 12 for modications, or contact PRx Performance:
Locate Studs
1. Fold-Up Murphy Rack with Extended Pull-Up Bar is designed to be mounted to wood studs with
standard 16” or 24” spacing, with or without drywall
2. For mounting your rack to a wall with non-standard stud spacing, please email us at
3. PRx recommends professional installation for mounting the wall brackets to a block, concrete, or
metal stud wall
4. Use a stud nder to locate the rightmost stud where you intend to install the right side of your Rack
5. Begin at the height of your lower bracket (19”)
6. With a stud nder, locate both the left and right edge of the stud and mark them with a pencil
7. Mark the center of the stud between the edges with a pencil
8. Find and mark the same stud at the height of the Wall Brackets (19” and 88”)
9. Locate and mark the remaining three studs in the same fashion. (If your studs are spaced 24”, you
will locate only two more)
Wall Bracket Helpful Tips
1. Bracket “ears” will point downward
2. Bracket measurements are on-center (This means measure from the middle of the hole)
3. The distance between the two wall brackets is the MOST IMPORTANT measurement and should
take precedence over the bracket distance from the oor (if there is a discrepancy). For the rack to
stow properly, this measurement should be made precisely
4. Standard studs are spaced 16” apart and correspond with the four outside holes. The center hole is
only used if studs are spaced 24”
5. Do not over tighten lag screws. Overtightening may strip the pilot hole
6 (701) 566-0452
Mount Lower Bracket
1. Beginning with the right stud, measure 19” up from the oor and drill a pilot hole into the stud
2. Fasten a wall bracket to this stud with an M8 x 65 Lag Screw (5) and M8 Washer (6), but do not
tighten all the way
3. Using the same measurement on the leftmost stud, drill a pilot hole and fasten the left side of the wall
bracket in the same fashion. Use a level to ensure the bracket is level horizontally
4. Finally, drill pilot holes through the remaining hole(s) and fasten M8 x 65 Lag Screws (5) with M8
Washers (6) into remaining stud(s), but do not fully tighten
Mount Upper Bracket
1. Using the same procedure as with the lower bracket, attach the upper bracket exactly 69” up from
center to center of the lower bracket, or about 88” above the oor
2. Level the top bracket rst. Fully tighten the top lag screws. **DO NOT OVERTIGHTEN**. Hang a
plumb line from the left ear and align the bottom bracket
3. Once in line and level, tighten all remaining screws
4. If, for any reason, you can’t mount the brackets at the recommended height, please refer to page 12
for installation modications or email [email protected]
52
69”
19”
88”
108”
16” 16” 16”
24” 24”
Linkage Arms
Linkage Arm Assembly
1. Attach the Shock (3B) to the Linkage Arm (3A) using M6 x 16 Allen Bolt (3C) and M6 Nylock Nut (3D).
Fully tighten M6 Nylock Nut (3D)
2. Once the shock is attached to the arm, place the M8 Nylock Nut (3E) onto the shock and lightly hand
tighten. This will make installation more convenient later
3. Repeat with other three Linkage Arms and shocks
Linkage Arm Attachment to Wall Brackets
1. Place the small side of the Plastic Spacer (7) in the straight, gas-shock facing, portion of the Linkage
Arm(3A) as pictured below
2. Place the Linkage Arm (3A) with the inserted Plastic Spacer (7), on the inside of the wall bracket “ear”
3. Attach the Linkage Arm (3A) to the wall bracket using a M16 x 35 Hex Head Bolt (8) and M16 Washer
(9) on the outside of the wall bracket “ear” and a M16 Washer (9) and M16 Nylock Nut (10) on the
opposite side
4. Tighten using a 24mm socket and 24mm
wrench
*NOTE: DO NOT over tighten any of the
pivot points. This may result in the rack
feeling “stiff ” moving up and down. It
should be able to move up and down
freely
5. Repeat so all four linkage arms are attached
to the wall brackets
*NOTE: DO NOT attach the shocks to the
wall brackets at this point of assembly
9
9
87
10
3A
3E
3C
3B
3D
3A
8 (701) 566-0452
h1
h1
h2
h3
h3 h4
4A
18
17 TOP
BOTTOM
4B
4D
4C
8
10
h2
h5
Assemble Extended Pull-Up Bar
1. Lay out parts 4A through 4D to match the diagram below.
Pay close attention to the holes h1 & h3 on 4A. Only one of
the support sides (4A) will have a divot for the pull-up
bar stud on 4B
2. The Right and Left Arms (4D) should be angled outward on
the bottom section of the extended pull-up bar.
3. Using M8 x 30 Hex Head Bolt (17) attach Left Support (4A)
to a Bar (4B) through h1. The stud on the Bar (4B) should
t into the divot of Left Support (4A) during assembly.
Then repeat on the other side with the Bar (4B) and Right
Support (4C). Fully tighten the pull-up bar as this will reduce
movement of the bar while in use
4. Using M8 x 25 Allen Bolt (18), attach Left Support (4A) to the Bar (4B) through h3 and repeat with the
Bar (4B) and Right Support (4C)
5. Attach Left Arm (4D) to Left Support (4A) through h2 of both pieces using M16 x 35 Hex Head Bolt (8)
and M16 Nylock Nut (10). Repeat with Right Support (4C) and Right Arm (4D)
h1 h2
4B 4A
Attach Extended Pull-Up Bar To Uprights
1. Lay uprights on ground with the narrow side facing upward (with space between for Extended Pull-Up
Bar)
2. Lay the Extended Pull-Up Bar at on the ground so it is curving upward between the tops of the
uprights (see diagram). The top of the uprights will not have a plug
3. If needed, rotate the Extended Pull-Up Bar so h4 aligns with the 5th side hole down from the top of
the uprights
4. Using a M16 x 80 Hex Head Bolt (12), two M16 Washers (9), and one M16 Nylock Nut (10) connect
h4 of the Extended Pull-Up Bar to the 5th hole down from the top of the upright (see diagram). You
will need to lift uprights slightly so that the holes align. Do not fully tighten (hand tighten). Repeat on
other side
5th hole
h4
h2
h2
h5
h4
h2
h5
h5
5. Lift top of Extended Pull-Up Bar off the ground until the Extended Pull-Up Bar arms hang down to
align h5 with the top hole of the uprights. Attach the Extended Pull-Up Bar to the uprights using an
M16 x 85 Hex Head Bolt (11), two M16 Washers (9), and one M16 Nylock Nut (10). Do not fully
tighten (hand tighten). Repeat on other side
6. Tighten bolts in h4 and h2, but leave h5 loose (this will come off when you attach the rack to the top
linkage arms).
7. Team lift rack into place (approximately 20” from the wall), and begin attaching linkage arms starting
at the top
10 (701) 566-0452
Lower Linkage Arms
1. Place plastic spacer on the inside of the bottom linkage arms, place it against the 19” hole of the
upright. Attach Linkage Arm (3A), Plastic Spacer (7) and upright using an M16 x 80 Hex Head Bolt
(12), two M16 Washers (9), and one M16 Nylock Nut (10). DO NOT ATTACH THE SHOCKS
2. Repeat on the opposite side
3. NOTE: DO NOT over tighten
Attach Extended Pull-Up Bar to Linkage Arms
Upper Linkage Arms
1. Attach the left linkage arm by removing the M16 x 85 Hex Head Bolt (11) from h5. Place the Plastic
Spacer (7) on the inside of the linkage arm and place it against the top hole of the upright
2. Attach linkage arm, plastic spacer, upright and Extended Pull-Up Bar using the M16 x 85 Hex Head
Bolt (11), two M16 Washers (9), and one M16 Nylock Nut (10). NOTE: DO NOT over tighten
3. Repeat on the right side
h4
h5
7
7 7
10
9
9
10
11
12
3A
h2
9
3A
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