Precor S3.55 Quick guide

Assembly and Maintenance Guide
S3.55
Strength-Training
Fitness Equipment

S3.55 Assembly and Maintenance Guide
page 2
IMPORTANT SAFETY INSTRUCTIONS
Important Safety Instructions
Important Safety Instructions
Before beginning any fitness program, you should
obtain a complete physical examination from your
physician.
Il est conseillé de subir un examen médical complet
avant d’entreprendre tout programme d’exercise. Si
vous avez des étourdissements ou des faiblesses,
arrêtez les exercices immédiatement.
When using exercise equipment, basic precautions
should always be taken, including the following:
• Read all instructions before using the S3.55
equipment. These instructions are written to
ensure your safety and to protect the unit.
• Do not allow children on or near the equipment.
• Use the equipment only for its intended purpose as
described in this manual. Do not use accessory
attachments that are not recommended by the
manufacturer: such attachments might cause
injuries.
• Wear proper exercise clothing and shoes for your
workout–no loose clothing.
• Use care when getting on or off the unit.
• Do not overexert yourself or work to exhaustion.
• If you feel pain or abnormal symptoms, stop your
workout immediately and consult your physician.
• Never operate the unit when it has been dropped
or damaged. Return the equipment to a service
center for examination and repair.
• Never drop or insert objects into any opening.
Keep hands away from moving parts.
• Always check the unit and its cables before each
use. Make sure that all fasteners and cables are
secure and in good working condition.
• Do not use the equipment outdoors.
Personal Safety During Assembly
• It is strongly recommended that a qualified
dealer assemble the equipment. Precor
recommends using more than one person
to assemble this equipment.
• Wear proper attire during the assembly process.
Do not wear loose clothing or open-toed shoes.
Tie long hair back.
• Read each numbered step in the assembly
instructions and follow the steps in sequence.
Do not skip ahead. If you skip ahead, you may
learn later that you have to disassemble
components and that you may have damaged
the equipment.
• Assemble and operate the S3.55 on a solid, level
surface. Locate the unit a few inches from walls or
furniture to provide easy access.
The S3.55 is designed for your enjoyment. By following
these precautions and using good common sense, you
will have many safe and pleasurable hours of healthful
exercise with your new equipment.
Obtaining Service
Do not attempt to service the S3.55 yourself
except for the maintenance tasks described
in this manual.
For information about product operation
or service, check out the Precor web site
at www.precor.com or contact an authorized
Precor Strength dealer. To locate the
dealer or service person nearest you,
call 1-800-4-PRECOR.
If you call or email Customer Support,
have your model name and serial number
available. The serial number is located on
the right side at the base of the Main Frame.
For future reference, write the model and
serial number in the space provided below.
Model name: S3.55
Serial number: ____________

S3.55 Assembly and Maintenance Guide
page 3
Table of Contents
Table of Contents
1
2
3
Important Safety Instructions ....................................................................... 2
Personal Safety During Assembly ........................................................................................... 2
Obtaining Service .................................................................................................................... 2
Before You Begin ........................................................................................... 5
Unpacking the Equipment ....................................................................................................... 5
Optional Equipment ................................................................................................................. 5
Preparations................................................................................................... 6
Required Tools ......................................................................................................................... 6
Assembly Requirements ......................................................................................................... 6
Assembly Instructions .................................................................................. 7
Open Boxes 1 and 2 ................................................................................................................ 7
1. Position the Main Frame ............................................................................................... 8
2. Attach the Seat Base .................................................................................................... 9
3. Attach the Side Rails .................................................................................................... 10
4. Install the Upper Frame ................................................................................................ 11
Open Box 3 ............................................................................................................................. 12
5. Attach the Leg Station .................................................................................................. 13
6. Attach the Left Press Arm ............................................................................................. 14
7. Attach the Press Arm Inward Motion Cable .................................................................. 15
8. Install the Seat Adjustment Cable ................................................................................. 16
9. Attach the Cables ......................................................................................................... 17
10. Attach the Right Press Arm .......................................................................................... 18
11. Attach the Row Arm ...................................................................................................... 19
12. Attach the Leg Extension .............................................................................................. 20

S3.55 Assembly and Maintenance Guide
page 4
Table of Contents
4
13. Attach the Press Arm Cables to the Main Frame .......................................................... 21
14. Attach the Press Arm Pulleys to Main Frame ............................................................... 22
15. Feed the Row Arm Cable.............................................................................................. 23
16. Attach the Cable to the Row Arm.................................................................................. 25
Open Box 4 ............................................................................................................................. 27
17. Attach the Rear Shroud ............................................................................................... 28
18. Assemble the Weight Stack .......................................................................................... 29
19. Assemble the Top Cap Weight and the Selector Stem.................................................. 31
20. Assemble the Weight Stack Top Frame and Attach the Side Beam .............................. 32
21. Install the Add-On Weights ........................................................................................... 33
22. Remove the Pec Fly Drum Assembly from the Main Upright ........................................ 35
23. Install the Weight Stack Cable ...................................................................................... 36
24. Attach the Cable to the Main Frame ............................................................................. 38
25. Attach the Cable to the Leg Station .............................................................................. 41
26. Attach the Leg Station Cable to the Main Frame .......................................................... 43
27. Re-Install the Pec Fly Drum Assembly on the Main Upright ......................................... 44
28. Attach the Cables to the Pec Fly Drums ....................................................................... 45
29. Feed the Pec Fly Cable................................................................................................. 46
30. Attach the Shrouds ....................................................................................................... 47
31. Attach the Pec Fly Arms ............................................................................................... 49
32. Attach the Padded Seats .............................................................................................. 50
33. Install the Roller Pads and Attach the Accessories ...................................................... 51
34. Apply the Weight Decals ............................................................................................... 53
Adjustments and Maintenance ..................................................................... 54
1. Lat Pull and Seated Row Cable (46007-102) Adjustment ................................................... 55
2. Press Arm Cable (46008-101) Adjustment .......................................................................... 56
3. Press Arm Cable (46254-101) and Seat Carriage (46414-101) Adjustments ..................... 57
4. Pec Fly Adjustments ............................................................................................................ 59
5. Maintenance ........................................................................................................................ 60
Warranty Registration Card ..................................................................................................... 61
Precor Residential Equipment Limited Warranty ..................................................................... 63
Specifications ........................................................................................................... Back Cover

S3.55 Assembly and Maintenance Guide
page 5
1Before You Begin
Before You Begin
Thank you for purchasing the S3.55. This unit is part
of the Precor Strength line of quality strength training
machines that let you target specific muscle groups
to achieve better muscle tone and overall body
conditioning. To fully use the equipment, please study
this guide thoroughly.
Unpacking the Equipment
The S3.55 is carefully tested and inspected before
shipment. Precor Strength ships the unit in four boxes.
Precor recommends using more than one person to
assemble this equipment.
• Review the Installation Requirements found on the
next page.
• Follow the assembly instructions found in this guide.
Open one box and assemble its contents before
moving on to the next box.
• If any items are missing, contact the dealer
from whom you purchased the unit or call
1-800-4-PRECOR for the dealer nearest you.
Optional Equipment
Optional equipment that you can purchase through
your dealer includes a Heavy Stack Option (equaling
an additional 60 lb of resistance) and the Leg Press. To
purchase, refer to Obtaining Service.

S3.55 Assembly and Maintenance Guide
page 6
2Preparations
Preparations
CAUTION: To set up this unit, you will need
assistance. Do not attempt assembly by yourself.
Fill out and mail the warranty registration card. The
registration card is found on page 58.
Required Tools
You must obtain these tools before assembling
the unit:
❏⁹⁄₁₆-inch socket wrench or 14-mm socket wrench
❏¾-inch socket wrench
❏⁹⁄₁₆-inch box-end wrench or 14-mm box-end
wrench
❏¾-inch box-end wrench
❏³₈-inch open-end wrench
❏Standard set of metric hex keys
❏Adjustable pliers or adjustable wrench
❏Measuring tape
❏Wire cutter (to cut plastic tie wraps)
❏Step stool or ladder
Assembly Requirements
Follow these installation requirements when
assembling the unit:
•You must review and follow the instructions in
this guide. If you do not assemble and use the
S3.55 according to these guidelines, you could void
the Precor Limited Warranty (page 59).
•While you may be able to assemble the S3.55
using the illustrations only, important safety
notes and other tips are included in the text.
• Read all the caution notes on each page before
beginning that step.
•Set up the S3.55 on a solid, flat surface. A
smooth, flat surface under the unit helps to keep
it level. A level unit has fewer malfunctions.
• CAUTION: It is highly recommended that the
S3.55 be assembled and used on the ground
floor. Make sure that the area where you plan to
assemble and use the S3.55 has the structural
integrity to support the 950-lb (428-kg) unit.
•Provide ample space around the machine.
Open space around the machine allows for
easier access.
•Determine the right and left side of the unit.
Certain steps in the assembly instructions make
reference to the left or right side of the unit. To
remain consistent, place your back to the Main
Frame and determine left and right from that
orientation.
•Check the end of a fastener before inserting it.
The fasteners for each step are packaged in a
plastic bag. The fasteners that are inserted into a
threaded hole do not use locknuts. These bolts or
screws are distinguished with a blue patch on the
threaded end. Please note the callouts in the
instructions and use the proper fasteners.
•Insert all bolts in the same direction. The
equipment will look better when you insert all the
bolts in the same direction unless this guide
specifies otherwise.
•Leave room for adjustments. Tighten fasteners
such as bolts, nuts, and screws so the unit is stable,
but leave room for adjustments. Do not fully tighten
fasteners until instructed in the assembly steps
to do so.
•A 6-inch scale is provided at the bottom of every
assembly instruction page. Use this scale to
identify the correct size for bolts and spacers. The
head of a bolt is not used in measuring the length of
a bolt.
To find out the length of a particular bolt, measure
its shank (the long, narrow part beneath the head).
Refer to the following diagram:
Bolt head
Bolt threads
Shank
To determine the
length of a bolt,
measure its shank.

S3.55 Assembly and Maintenance Guide
page 7
1 2 3 4 5 6
3Assembly
Instructions
Assembly Instructions—Open Boxes 1 and 2
The assembly of the S3.55 takes professional
installers about 4 hours to complete.
Professional installers are highly recommended!
However, if you acquire the appropriate tools, obtain
assistance, and follow the assembly steps sequentially,
the process will take more time, but is fairly easy.
CAUTION: Obtain assistance! Do not attempt to
assemble the S3.55 by yourself. Review the
Installation Requirements on page 6 before
proceeding with the following steps.
Open Boxes 1 and 2
The S3.55 comes in four boxes. Use wire cutters to
open the boxes. Be careful to open boxes and
assemble components in the sequence presented in
this guide. With so many assembled parts, proper
alignment and adjustment is critical.
The illustrations show how the S3.55 will look after
you complete the assembly of Box 1 and Box 2.
Box 1 (assembled) Box 1 and Box 2 (assembled)
Right
Side
Left Side
Main Frame Upper Cross Brace
Middle
Cross
Brace
Pec Fly
Assembly
Base
Crossbar
Lower
Crossbar
Main Upright
Seat Back
Frame
Seat Carriage
Upper Frame
Side
Rail

S3.55 Assembly and Maintenance Guide
page 8
1 2 3 4 5 6
1. Position the Main Frame
A. Have an assistant help you lift the Main Frame out
of the packaging and place it flat on the floor near
the location where you plan to use it.
B. Grasp one side of the Main Frame and have your
assistant hold on to the other side. Tip the Main
Frame onto its base.
C. Use wire cutters to cut the tie wrap that secured
the Guide Rod Bracket during shipping.
Step 1. Position the Main Frame
B
AMain Frame
Base of
Main Frame
CGuide
Rod
Bracket

S3.55 Assembly and Maintenance Guide
page 9
1 2 3 4 5 6
2. Attach the Seat Base
A. With someone helping you, lift the Seat Base and
slide it through the Mounting Cutout in the Main
Upright.
B. Balance the Seat Carriage on a Weight Box.
Note: Place the Weight Box to the rear of the Leg
Station Mounting Brackets.
Important: Leave the Weight Box to support the
Seat Base.
C. Attach the Seat Rail to the Front Bracket using
one 4-inch bolt
two washers
one locknut
Finger tighten.
Note: If the holes do not line up easily, ask your
assistant to lift the Seat Carriage.
D. Attach the Seat Rail to the Rear Bracket using
one 3-inch bolt
two washers
one locknut
Finger tighten.
Note: Assemble the fasteners throughout these
instructions as detailed in each step. When in
doubt, use the illustrations for help.
Step 2. Attach the Seat Base
A
Main
Upright
Seat Base
D1 - 3" bolt
2 - washers
1 - locknut
Seat Back Frame
Weight Box
Rear
Bracket
Seat Rail
B
Seat Base
Weight Box
Leg Station
Mounting
Brackets
1 - 4" bolt
2 - washers
1 - locknut
C
Main
Frame
Seat Base
Rear
Bracket
Front
Bracket
Seat Carriage
Seat Rail
Mounting Cutout
Seat Rail

S3.55 Assembly and Maintenance Guide
page 10
1 2 3 4 5 6
3. Attach the Side Rails
Note: Perform the following steps on one side
at a time.
A. Position one Side Rail next to the Main Frame so
that the three holes are at the top.
B. Attach the Side Rail to the Upper Cross Brace
using
one 2-inch bolt (blue patch)
one washer
Finger tighten.
C. Attach the base of the Side Rail to the Main Frame
using
one 2½-inch bolt
two washers
1 locknut
Finger tighten.
D. Repeat steps A through C to attach the opposite
Side Rail.
Step 3. Attach the Side Rails
1 - 2" bolt
1 - washer
B
Side Rails
Upper Cross
Brace
1 - 2½" bolt
2 - washers
1 - locknut
C
Main Frame
1 - 2" bolt
1 - washer
D
D1 - 2½" bolt
2 - washers
1 - locknut

S3.55 Assembly and Maintenance Guide
page 11
1 2 3 4 5 6
4. Install the Upper Frame
Important: Use a step stool or ladder if you are
less than 6 feet (185 cm) tall.
A. Place the Upper Frame hooks inside the top of the
Side Rails.
B. Attach the Upper Frame to the Side Rails by
aligning the mounting holes and using
six 2½-inch bolts
twelve washers
six locknuts
Finger tighten each fastener. Start with tightening
the lowest bolts, then move to the top bolts, and
finish with the middle bolts.
Note: Rest the Center Support Pulley Bracket on
the Main Frame while you install the Front Bracket
fasteners in the Upper Frame.
C. Attach the Center Support to the Upper Frame
using
two 1-inch bolts
four washers
two locknuts
Finger tighten.
D. Attach the Center Support to the Main Frame using
two 3-inch bolts
four washers
two locknuts
Finger tighten.
Note: The remaining items in Box 2 are used later in
the assembly process.
Step 4. Install the Upper Frame
B
C
AUpper
Frame
D
Side Rails
6 - 2½" bolts
12 - washers
6 - locknuts
2 - 3" bolts
4 - washers
2 - locknuts
2 - 1" bolts
4 - washers
2 - locknuts
Center Support
Main Frame
Upper Frame
Upper Frame
hooks
Center Support Pulley Bracket
Front Bracket

S3.55 Assembly and Maintenance Guide
page 12
1 2 3 4 5 6
Open Box 3
Use wire cutters to open the box.
The illustration shows how the S3.55 will look after you
complete this section.
Note: Some items in this box may not be needed until
later in the assembly process.
Open Box 3
Left Press Arm
Right Press Arm
Side Rail
Leg Station
Seat Assembly
Row Arms
Boxes 1, 2, and Box 3 (assembled)
Leg Hold Down
Leg Extension

S3.55 Assembly and Maintenance Guide
page 13
1 2 3 4 5 6
Step 5. Attach the Leg Station
5. Attach the Leg Station
A. With someone helping you, use the Leg Station as
a lever. While you slide it into position, ask your
assistant to remove the Weight Box from beneath
the Seat Base.
CAUTION: Be aware that your hands, fingers,
and feet can be injured when sliding the Leg
Station onto the Seat Carriage. Take
appropriate precautions.
B. Align the Leg Station with the Mounting Brackets
and insert
two 3¼-inch bolts
four washers
two locknuts
Finger tighten.
Note: To align the bolts with the Leg Station
Mounting Brackets, ask your assistant to lift the
Seat Carriage. Insert the front bolt first and have
your assistant use the Leg Hold Down as leverage
in aligning the rear bolt.
C. Wrench tighten all eighteen fasteners with a
⁹⁄₁₆-inch (14-mm) socket and box-end wrench.
B
A
Leg Station
2 - 3¼" bolts
4 - washers
2 - locknuts
Weight Box
C
Leg Station
Mounting Brackets
Seat
Carriage
Insert this bolt first.
Leg Hold Down
Seat Base

S3.55 Assembly and Maintenance Guide
page 14
1 2 3 4 5 6
Step 6. Attach the Left Press Arm
A
Press
Arm
Bracket
6. Attach the Left Press Arm
Important: For ease of assembly, lower the Seat
Back Frame by pressing the Release Bar on the
Left Seat Handlebar.
A. Place the Cables protruding from the end of the
Left Press Arm over the Press Arm Flange.
B. Carefully lower the Left Press Arm into the Press
Arm Bracket while keeping the Axle Tube level.
C. Secure the Left Press Arm using
two 1-inch bolts (blue patch)
two lockwashers
two washers
Wrench tighten.
Important: In Step C, slide a lockwasher on the
bolt. Follow it with a flat washer.
Note: During both assembly and disassembly, you will
need to insert a metric hex key into the access hole at
the top of the Axle Tube to remove the two ¾-inch
bolts. The metric hex key keeps the fasteners from
spinning.
2 - 1" bolts
2 - lockwashers
2 - washers
C
Left
Press
Arm
Axle Tube
Press Arm Flange
Left Press Arm
B
Cables
Axle Tube
Seat Back
Frame
Lockwasher
Flat Washer

S3.55 Assembly and Maintenance Guide
page 15
1 2 3 4 5 6
7. Attach the Press Arm Inward
Motion Cable
The Inward Motion Cable 46298-103 connects the blue
button on the Left Press Arm to the cabling system
(Collar Mount) on the Press Arm Flange. This
connection makes the inward movement of the Press
Arms possible.
A. Thread Cable 46298-103 into the Collar Mount on
the Press Arm Flange until the nut is snug against
the top of the Collar Mount.
B. Wrench tighten the nut.
Step 7. Attach the Press Arm Inward Motion Cable
Inward Motion Cable 46298-103
A
Collar Mount
Press Arm Flange
B
Collar Mount

S3.55 Assembly and Maintenance Guide
page 16
1 2 3 4 5 6
Step 8. Install the Seat Adjustment Cable
A
8. Install the Seat Adjustment
Cable
The Seat Adjustment Cable 46414-101 attaches to the
base of the Seat Carriage and to the Press Arm
Adjuster connected to the Cable Bracket on the Main
Frame.
A. Remove the 2-inch bolt and nut from the Press
Arm Adjuster and set them aside.
B. Feed the Seat Adjustment Cable 46414-101
through the clips on the underside of the Seat Rail.
C. Continue to feed the Cable through the Seat
Carriage Mounting Hole.
D. Attach the end of the Cable to the Release Handle
Bracket on the right side of the Seat Carriage.
E. Feed the Seat Adjustment Cable 46414-101 over
the Base Crossbar and along the seat assembly
side of the Lower Crossbar, but behind the Middle
Cross Brace. Review the illustration. Let the Cable
hang over the Press Arm Adjuster.
CAUTION: Do not cut the tie wrap holding the
Cable Bracket.
Press Arm
Adjuster
Seat Adjustment Cable
46414-101
Seat Carriage
CSeat Carriage Mounting Hole
DRelease Handle Bracket
B
Middle Cross Brace
Feed cable behind Middle
Cross Brace.
Feed cable between Main
Upright and Main Frame.
Cable
Bracket
Lower
Crossbar
Base
Crossbar
Clips
Note: Pec Fly Drums removed for clarity.
E
Seat Rail
Main Upright
Main Frame

S3.55 Assembly and Maintenance Guide
page 17
1 2 3 4 5 6
Step 9. Attach the Cables
9. Attach the Cables
Once both Cables are attached to the Cable Bracket,
the user gains a wide range of motion. By pressing the
orange release handle on the Left Press Arm, the user
can secure the Press Arms in vertical and horizontal
positions and easily slide the seat forward or
backward.
To attach the cables, take the following steps:
A. Slide the 2-inch bolt (removed in step 8A) through
the right side of the bracket.
B. On the bolt, assemble
Seat Adjustment Cable 46414-101
Press Arm Cable 46254-101
spring
locknut
Wrench tighten.
Note: Make sure that the locknut is on the outside
of the Press Arm Cable Bracket as shown in the
illustration.
C. Sandwich the Cable Bracket, at both ends,
between the two washers on the Press Arm and
Seat Adjustment Cables. If necessary, loosen the
nuts on either side of the washers to create space.
D. Wrench tighten the nuts on either side of the
washers using a ³⁄₈-inch open-end wrench.
Press Arm
Cable
46254-101
Seat Adjustment
Cable 46414-101
D
A
Press Arm Cable 46254-101
Seat Adjustment Cable 46414-101
Cable Bracket
B1 - spring
1 - locknut
1 - 2" bolt
CCable
Bracket
Washer
Washer

S3.55 Assembly and Maintenance Guide
page 18
1 2 3 4 5 6
10. Attach the Right Press Arm
A. Carefully, lower the Right Press Arm into the Press
Arm Bracket while keeping the Axle Tube level.
B. Secure the Right Press Arm using
two 1-inch bolts (blue patch)
two lockwashers
two washers
Wrench tighten.
C. Cut the tie wrap holding the Cable Bracket.
D. In one smooth motion, depress the orange
Release Handle, slightly lift and lower the Press
Arm so that it is out of the way of the remaining
assembly.
Note: During disassembly, you will need to insert a
metric hex key into the access hole at the top of the
Axle Tube to remove the two ¾-inch bolts. The metric
hex key keeps the fasteners from spinning.
Step 10. Attach the Right Press Arm
A
Press
Arm
Bracket
Left Press Arm
Right Press Arm
Press Arm Cable
Seat Assembly Cable
Tie Wrap
C
B
DRelease Handle
2 - 1" bolts
2 - lockwashers
2 - washers
Axle Tube
Right Press
Arm
Release
Handle

S3.55 Assembly and Maintenance Guide
page 19
1 2 3 4 5 6
Step 11. Attach the Row Arm
11. Attach the Row Arm
Important: Use a step stool or ladder if you are
less than 6 feet (185 cm) tall.
A. With someone helping you, place the Row Arm
Axle inside the Row Arm Axle Bracket.
B. Secure the Row Arm using
two ¾-inch bolts (blue patch)
two washers
Wrench tighten.
Note: One person can hold the Row Arm in place
while the second person aligns the holes and
tightens the bolts.
C. Push the Row Arm against the Main Frame so the
magnet engages and holds the Row Arm in place.
Note: During disassembly, you will need to insert a
metric hex key into the access hole at the top of the
Axle Tube to remove the two ¾-inch bolts. The metric
hex key keeps the fasteners from spinning.
B2 - ¾" bolts
2 - washers
A
Row Arm Axle
Row Arm
Axle Bracket
Access hole used only for
disassembly procedures.
C
Row
Arm
Axle
Row Arm
Axle Bracket
Magnet
Row Arm
Magnet
Row Arm

S3.55 Assembly and Maintenance Guide
page 20
1 2 3 4 5 6
Step 12. Attach the Leg Extension
12. Attach the Leg Extension
A. Slide the Leg Extension through the Leg Station.
B. Install the Key.
C. Attach the Rotating Arm using
one 3-inch bolt
two washers
one locknut
Wrench tighten.
Key
A
BC
Rotating Arm
1 - 3" bolt
2 - washers
1 - locknut
Leg Hold Down
Leg Station
Leg
Extension
Leg Extension
Leg Hold
Down