NASA CP Basic Principles Book
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HARD SPOT INSPECTION TROLLEY - English - Page 24/84

Operating and Maintenance Instructions

adaptaed from: https://app.box.com/s/c6qfgtuhfg1yd2ottrfum98x8jmg7rn3


Hard spot inspection trolley • PLAMAT-M • 18201
Operating and Maintenance Instructions • V2.0
Structure and handling of the trolley



3.1.2 Exchanging the rollers

Exchange the wheel when observing improper balance and excessive wear. To do so, conduct the following steps as illustrated in the figure below:
  1. Untighten the screws and remove the plate.
  2. Pull out the axle.
  3. Remove the wheel with the two composite bushings.
  4. Apply (press) two new bushings to the new wheel.
  5. Insert the new wheel.
  6. Push in the axle, note that the rabbet fits into proper position of the plate.

Exchanging rollers
Figure 16: Exchanging the rollers

3.1.3 Exchanging the tension spring and rubber buffer

Please proceed analogously to section 3.1.2.

Pressure spring & rubber buffer
Figure 17: Exchanging the pressure spring and rubber buffer

3.1.4 Cleaning of the probes and steel plate


Probes: The bottom of the probe heads can be covered with dust (impedes movement of trolley). Clean them regularly with a brush.

Steel plate: Sweep the steel plate from raw dirt, especially ferromagnetic components.




ROSEN and IZfP Page 24 of 84 Confidential!



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