9. Install fl exible arm assembly and rear case using the screws
that were removed in Step 4.
10. Replace sensor-matching resistor.
11. Replace batteries and battery cover.
12. Test instrument response (refer to Section 4.2).
5.3 Replacing the Speaker
Items required:
• Medium fl at-blade screwdriver
• Medium Phillips screwdriver
•
11
/
32
" Nut driver
• Replacement speaker (P/N 0019-0400)
Procedure: (See Figure 7)
1. Turn OFF instrument; then remove battery cover and bat-
teries.
2. Remove sensor-matching resistor.
3. Remove four screws securing rear case; then carefully lift
rear case and fl exible arm assembly away from instrument,
being careful not to pull wires attached to printed circuit
board. Lay rear case face down on work area.
4. Carefully remove printed circuit board from front case; then
unplug speaker connector J2 from printed circuit board.
5. Remove two nuts and washers securing speaker to rear
case; then remove speaker.
6. Install new speaker and secure in place using the nuts and
washers that were removed in Step 5. CAUTION! Do not
overtighten the nuts!
Maintenance
12
Leakator 10
Instruction 0019-9167
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