4-42. REMOVE/INSTALL THE ANALYTICAL BALANCE AND VIBRATION
DAMPING SUPPORT - continued.
b. From beneath the countertop, remove six mounting screws, nuts, and flat washers attaching vibration damping
c. From each retaining latch, remove two screws, flat washers, lockwashers, and remove the four retaining latches.
1. Install Vibration Damping Support. See figure 4-40.
a. Align and attach four retaining latches to the new vibration damping support, using two screws, lockwashers, and
flat washers to attach each latch.
b. Align new vibration damping support on countertop and attach with six mounting screws, flat washers, and nuts.
Tighten in place.
2. Install Analytical Balance and Cover.
a. Place new analytical balance on vibration damping support.
b. Place new cover over analytical balance and fasten in place with four retaining latches and retaining strap.
4-43. REMOVE/INSTALL GUM BATH/FUME HOOD EXHAUST BLOWER HOSES.
This task covers:
General Mechanics Tool Kit, (Appendix B, Section III, Item 2)
General Safety Instructions
Before performing any maintenance actions on electrical equipment, ensure all
electrical power has been turned off. Death or serious injury may occur from
failure to do this.
Remove the Exhaust Hose.
a. The exhaust hose for the gum bath or the fume hood exhaust blower is removed by loosening the screws on the
hose clamps at both ends of the hose and sliding defective hose free of the blower discharge and the discharge