TABLE OF CONTENTS
IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
OPERATION AND ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
CONDITIONING GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
Note: An EXPLODED DRAWING and a PART LIST are attached in the center of this manual.
IMPORTANT PRECAUTIONS
WARNING:
following important precautions and information before operating the treadmill.
1. It is the responsibility of the owner to ensure
that all users of this treadmill are adequately
informed of all warnings and precautions.
2. Use the treadmill only as described.
3. Place the treadmill on a level surface, with at
least eight feet of clearance behind it and two
feet on each side. Do not place the treadmill
on any surface that blocks air openings. To
protect the floor or carpet from damage, place
a mat under the treadmill.
4. Keep the treadmill indoors, away from mois-
ture and dust. Do not put the treadmill in a
garage or covered patio, or near water.
5. Do not operate the treadmill where aerosol
products are used or where oxygen is being
administered.
6. Keep children under the age of 12 and pets
away from the treadmill at all times.
7. The treadmill should be used only by persons
weighing 113 kg (250 lbs.) or less.
8. Never allow more than one person on the
treadmill at a time.
To reduce the risk of burns, fire, electric shock, or injury to persons, read the
9. Wear appropriate exercise clothes when
using the treadmill. Do not wear loose clothes
that could become caught in the treadmill.
Athletic support clothes are recommended for
both men and women. Always wear athletic
shoes. Never use the treadmill with bare feet,
wearing only stockings, or in sandals.
10. When connecting the power cord (see page 8),
plug the power cord into a surge suppressor
(not included) and plug the surge suppressor
into a grounded circuit capable of carrying 15
or more amps. No other appliance should be on
the same circuit. Do not use an extension cord.
11. Use only a CUL-listed surge suppressor of 450
joules minimum surge dissipation with voltage
rating of 400 volts or less, rated at 15 amps,
with a 1 mm
2
(14-gauge) cord of 1.5 m (5 ft.) or
less in length. Do not use an extension cord.
12. Failure to use a properly functioning surge
suppressor could result in damage to the con-
trol system of the treadmill. If the control sys-
tem is damaged, the walking belt may change
speed or stop unexpectedly, which may result
in a fall and serious injury.
13. Keep the power cord and the surge suppres-
sor away from heated surfaces.
2
Need help?
Do you have a question about the C42 and is the answer not in the manual?
Questions and answers
I have adjusted my walkking belt on the Proform model C42 as far as I can by using the adjuster at the back of the machine and belt still slips. Any thing else I can do other than buying a new walking belt?
To fix a slipping walking belt on a Pro-Form C42 treadmill without buying a new belt:
1. Remove the key and unplug the power cord.
2. Use an Allen wrench to turn both rear roller adjustment bolts clockwise 1/4 turn to tighten the belt.
3. Check the belt tension by lifting each side of the belt; it should lift 2–3 inches off the walking platform.
4. Ensure the belt is centered.
5. Plug in the power cord, insert the key, and run the treadmill for a few minutes.
6. Repeat the adjustment if the belt still slips.
If the problem continues, contact customer service.
This answer is automatically generated