Stairmaster HIITMill X 9-4640 Operating instructions

Brand: Stairmaster

Model: HIITMill X 9-4640

Type: Operating instructions

This manual is also suitable for

HIITMill 9-4590

Stairmaster HIITMill X 9-4640 is a revolutionary piece of fitness equipment that combines the benefits of a treadmill and a stair climber into one effective workout machine. With its unique design and advanced features, this machine offers a challenging and versatile workout experience to help you reach your fitness goals faster.

Page 1

620-8545 Rev. B

Rev. B

These instructions will walk the reader through the rebuilding the HIITMill (X)

brake lever.

Tools Required:

• 3mm Allen Key

• 4mm Allen Key

• 8mm Combination Wrench (x2)

• 10mm Combination Wrench (x2)

• 8mm Socket

• Torque Wrench

• Needle Nose Pliers

• 715-4073-KT “HIITMill Brake Lever Rebuild Kit

1. Using a 3mm allen key, remove the two (2)

screws securing the lever covers to the frame

then remove the lever covers.

2. Carefully pull the brake lever assembly out of the

frame.

HIITMill (X) Brake Lever Rebuild Instructions

Applies to: HIITMill (9-4590) + HIITMill X (9-4640)

Page 2

620-8545 Rev. B

3. Use the 10mm wrenches to loosen the two hex

nuts on the brake cable.

4. Disconnect the brake cable from the lever assem-

bly by rst rotating the level assembly forward

until it is perpendicular to the brake cable.

5. After rotating the level assembly, slide the lever

assembly back so that the brake cable pin comes

loose from the lever assembly.

Page 3

620-8545 Rev. B

6. With the level assembly free, use the 8mm

wrenches to remove ONE of the 5mm hex head

screws then slide the other screw and attached

lever axle out from the other side. Discard the

loose hex head screw and washer. If both screws

begin to come free from the lever axle, remove

and discard both screws.

NOTE: DO NOT discard the lever axle as this will be

reused at a later step.

7. Remove the lever from the lever housing.

8. Remove the two (2) polymer IGUS bushings and

replace with the IGUS bushings contained in

715-4073.

Page 4

620-8545 Rev. B

9. Remove the two (2) Belville (OLD) or Delrin

(NEW) thrust washers and replace with the Delrin

washers contained in 715-4073.

10. Reinsert the lever into the lever housing then

insert the screw and lever axle so that is passes

through the IGUS bushings replaced in Step 8

and the Delrin washers replaced in Step 9. Finally,

apply a drop of Loctite #243 to the new hex head

screw from 715-4073 and secure the screw into

the other side of the lever axle using a torque

wrench, torque to 45 in-lb (5.1 NM).

NOTE: If both screws came loose from the lever axle

in Step 6, they will both need to have Loctite applied

and torque values applied as described above.

11. Once the lever assembly has been reassembled,

follow Steps 1-5 in reverse to reinstall the lever

assembly into the frame. Ensure that the lever

assembly cutouts face the front of the machine

and that the red stop portion of the lever shroud

decals is facing the rear of the machine.

Page 5

620-8545 Rev. B

12. Remove the three (3) screws securing the brake

shrouds to the frame then remove the brake

shrouds.

13. Pull the resistance lever towards the rear of unit

so that maximum resistance is applied then

check to ensure that the rubber brake pad is

contacting the edge of the ywheel. If the rub-

ber pad is resting on the edge of the ywheel,

replace the shrouds that were removed in Step

12, this will conclude the instructions, otherwise

proceed to the next Step 14.

14. Use a 4mm allen key to loosen the brake wire

tension screw then use a pair of needle nose

pliers to pull the brake wire so that it is under

tension. Finally tighten the wire tension screw

while continuing to provide tension on the brake

wire.

NOTE: The belt has been removed to show clarity.

Stairmaster HIITMill X 9-4640 Operating instructions

Brand: Stairmaster

Model: HIITMill X 9-4640

Type: Operating instructions

This manual is also suitable for

HIITMill 9-4590

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Stairmaster HIITMill X 9-4640 Operating instructions

This manual is also suitable for

Stairmaster HIITMill X 9-4640 Operating instructions

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