Garmin APOLLO GX SERIES, Service Manual

Page: 113 / 166

Garmin AT Rev --
© 2004 Garmin AT GX Service Manual 8-17
Knob Replacement
This procedure describes the removal and replacement of the rotary knobs on the front of the bezel
assembly.
Parts Required
•
230-0402 SCREW, SET, 4-40 X 1/8" (3 required)
•
262-0049 KNOB, POWER DZUS RAIL NMC
•
262-0052-00 KNOB, INNER CONCENTRIC
•
262-0053-00 KNOB, OUTER CONCENTRIC
•
664-0042 LOCTITE, 242
Removal
1. Before starting this procedure, fill out a Service Data Sheet if this has not already been done. A
copy is located at the back of this manual.
2. Power the unit off and disconnect power from the unit.
3. Remove the three knobs from the front of the bezel assembly using the 0.050" hex driver.
Replacement
1. Replace the three knobs (262-0049, -0052,-0053) as needed. Apply Loctite (664-0042) to the
setscrews (230-0402). Tighten the setscrews using the 0.050" hex driver. Space the knobs 0.010"
off the bezel assembly so they will turn smoothly. Space the outer knob from the large knob
slightly so that it will turn freely while keeping the bottom of the small knob inside the cavity of the
large knob.
2. Test the unit to verify proper operation (see Return to Service procedures).
3. Using the Service Data Sheet, reenter the customer configuration.