Printronix PrintCart - Manual (Page 45)

Caster Wheels
45
Wheel Replacement
Caster Wheels
Removal
Recommended replacement caster wheels are specified in the repair parts
section (see “Spare Parts” on page 51).
1. Prevent the PrintCart from rolling by placing a 3/4 inch (approximately
19 mm) thick board behind the fixed wheel.
2. Elevate and support the entire end of the PrintCart, lifting the caster end
approximately 1 inch off the ground.
3. Remove the three 5/16 Nylock retaining nuts (1/2 inch open end wrench).
4. Remove the caster wheel.
Installation
1. Install the new caster by reversing the above process.
2. Make sure the nuts are tight.
3. Replace any nylock nuts if the nylon locking element is too worn to
provide retention.
Casters are available in various brands and styles. If the replacement is a
different brand than the original, it may be necessary to replace both since
caster mount heights vary enough to cause the PrintCart to rock.
Fixed Wheels
Removal
Recommended replacement wheels are specified in the repair parts section
(see “Spare Parts” on page 51).
1. Engage the caster wheel lock.
2. Lift and support the entire end of the PrintCart so the wheel is raised
approximately 1 inch off the ground.
3. Remove the external snap ring and thrust washer from the end of the
axle.
4. Remove the wheel.
Installation
Install the new wheel by reversing the above process.
The wheel is a commonly available style using an 8 inch outer diameter and a
5/8 inch bore. The hub is offset. Local replacements may be available that fit
this requirement. If the replacement is not identical to the original, it may be
necessary to replace both to ensure that the PrintCart does not rock.