Chapter 5
SAFETY FEATURES
[83]
Right
–Side Cam Roller
Cam Roller and Stand Off
1.
Remove the right side cover (two Phillips head screws).
2.
Remove the sensor board and set it aside (one 3 mm socket head cap screw). This step
is recommended, but not mandatory.
3.
To determine if the cam roller needs replacing, check the following:
a.
Grasp the cam roller with two fingers and make sure it feels smooth and non–
binding when it is rotated.
b.
If the steel guide rails (see Figure 11-4) on which the rollers roll, have any marks
on them other than a straight “wear path” parallel to the sides of the rails, the
rollers should be replaced.
c.
If a high temperature system has more than two years of regular use at high
temperatures, the rollers should be replaced.
4.
Use a 10 mm open end wrench and slide it over the flats of the cam roller stand–off,
which is screwed into a ball nut bracket.
5.
While holding the stand–off in place, place a 1/8–inch Allen wrench into the center of
the cam roller and unscrew the cam roller from the stand–off.
6.
Replace the faulty cam rollers with the proper type (either high or ambient temperature)
by holding the stand–off in place with a 10 mm open end wrench, and using a 1/8–inch
Allen wrench to screw the cam roller into the stand–off. Always replace them in pairs,
never as single rollers.
NOTE:
The recommended cam roller to use for ambient temperature systems is the McGill Model
CCF 1/2 N SB. For high temperature systems, the recommended roller is the McGill CCF 1/2 NB–
W1K.
Repeat Steps 1 through 6 for the left side cam roller, disregarding references to the sensor board.
11.3.2
Re
–Greasing the Ball Screw Recommended Frequency:
•
For ambient temperature systems—every 2 years of regular use, or as required.
Cam Roller
Stand-Off
Cam Roller
Содержание Ametek Quizix 5000 Series
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