LENOVO THINKSTATION PX (06) PDF MANUAL

ThinkStation Chassis Wheels are not an officially supported Lenovo product. Users, therefore, assume their own risk in assembling, installing, and using the wheel assemblies. Lenovo assumes no responsibility for any damage to the ThinkStation Workstation during installation or usage of the wheels.

ThinkStation Chassis Wheels are intended for indoor use only on tile, carpet, or similar surfaces. Users should be cautious with uneven surfaces such as threshold transition strips as the wheels are simple casters and do not include shock absorption.

The following parts are required to be purchased:

Type	Name	Specs	Vendor	Quantity
Casters*	Nefish 1.5 Inch Caster Wheels	Surface mount 1.8″x1.54″ plate w/ 1.35″x1.06″ screw holes 1.5″ wheel dia. 2.08″ total height	Amazon	1 Pack (4 Casters)
Thumbscrews	5/16″ – 18x 3/4″ Red Tee / Wing	5/16″ thread dia. 18 UNC pitch 3/4″ long 1.5″ head dia.	Thumbscrew Depot	4 Count
Screws	Phillips Rounded Head Thread-Forming Screw for Plastic	#8 size 3/8″ long Philips #2 drive 16 TPI	McMaster-Carr	16 (Sells in packs of 25)

*Do not use the screws that come with the Amazon caster set.

The base of The ThinkStation Chassis Wheels is a 3D printed part. Download the appropriate 3D print file from the ThinkStation Customer Solutions website where this whitepaper is located. Users should print two of each part, one for the front and one for the rear.

There are different 3D printed parts for different ThinkStation Workstation models. Refer to the table below for the appropriate 3D file to print for each ThinkStation Workstation model.

Table 2 – Matching 3D File to ThinkStation Model

ThinkStation	File Name
PX	thinkstationchassiswheels_px.stp
P8	thinkstationchassiswheels_p7_8.stp
P7	thinkstationchassiswheels_p7_8.stp

Important 3D Printing Notes:

ABS or PC-ABS is the recommended material.

100% infill density is recommended.

For best results use a 3D printer that also prints easily removable structural support material.

Prior to beginning assembly, ensure that you have procured the following parts listed in Sections 1 and 2:

Table 3 – Summary of Parts

Part	Quantity
Casters	4
Thumbscrews	4
Screws	16
3D Printed Base	2

The ThinkStation Chassis Wheels consist of two identical assemblies, one for the front of the chassis, and one for the rear. The following instructions cover one assembly, repeat steps 1 & 2 to create the second.

Step 1: Caster Assembly

*Caution: There are two different caster types in the set, two with brakes and two without. The table below shows the acceptable installation location options for each caster type.

Table 4 – Acceptable Caster Installation Locations

Acceptable	Not Acceptable
Brake, No Brake, Brake, No Brake (configuration 1) OR No Brake, Brake, No Brake, Brake (configuration 2)	Brake, No Brake, No Brake, Brake (configuration 1) OR No Brake, Brake, Brake, No Brake (configuration 2)

1a) Screw the Casters into the bottom of the 3D Printed Base.

Step 2: Thumbscrew Assembly

2a) Press the Thumbscrews into the top of the 3D Printed Base until they stop, they should insert about 1cm. Then, rotate the Thumbscrews clockwise to self-thread them through 3D Printed Base until the bottom of the screws reach the bottom of the base.

2b) (Optional) If the Thumbscrews are difficult to turn, repeatably screw and unscrew the Thumbscrew to form the thread in the 3D print better. This issue may arise depending on the tolerance of the 3D printer used to make the 3D Printed Base.

Step 3: Repeat for Second Assembly

3a) Repeat steps 1 & 2 to make both assemblies.

Once you have assembled the ThinkStation Chassis Wheels, it is time to install them on your ThinkStation workstation. The ThinkStation Chassis Wheels utilize the chassis’ handles for proper retention and weight distribution.

Installation of the wheel assemblies on the front and rear handles are identical. The following instructions cover one installation, repeat steps 1-3 to install the other.

Step 1: Prepare the Wheel Assemblies

1a) Ensure that the caster with the brake is in the locked position so that the wheel cannot turn.

1b) Ensure that the Thumbscrews are turned so the wings are parallel to the 3D Printed Base.

Step 2: Insert Wheel Assembly

2a) Choose to install either the front or rear wheel assembly.

2b) Lift the chosen side of the chassis slightly off the ground.

Note: The chassis will need to remain lifted throughout installation. It may be helpful to get assistance from another person so that one person can lift the chassis while the other installs the wheel assemblies.

2c) With the chassis lifted, insert one of the wheel assemblies by engaging the outer flanges with the outside of the handle and rotating the base of the assembly under the chassis.

Step 3: Secure Wheel Assembly

3) Turn the Thumbscrew clockwise until it engages the top of the chassis handle. The wing of the Thumbscrew should be perpendicular to the handle as shown.

Note: The Thumbscrew should engage the top of the handle with a light friction fit. It is not necessary to strongly tighten the Thumbscrew as this may cause damage to the handle.

Step 4: Repeat for Second Assembly

4) Installation of the wheel assemblies on the front and rear handles are identical. Repeat steps 1-3 to install both.

Note: Install both wheel assemblies one after the other in short succession. A single wheel assembly is not designed to support the weight of the chassis for a long time. Installing the second quickly will properly distribute the weight and allow for the ThinkStation Chassis Wheels to be used as intended.

To remove the chassis wheels:

1) Quarter-turn the Thumbscrews until they resemble their position prior to securing. It is not necessary to unscrew the Thumbscrews all the way. This will allow for simple re-installation.

2) Lift the chassis slightly off the ground.

3) Rotate the wheel assembly to unhinge it from the handle and remove.

4) Repeat for the other wheel assembly.