User's Manual

Item
Maintenance procedures
12
See that the electron tube shields for V2 and V3 are firmly in
position and secure. See that the electron tube retainer for V1
is clamped tight.
19
Inspect fixed capacitors on the underside of the tube tester chassis
for leaks, bulges, and discoloration.
43. Visual Inspection
Before operating the equipment, inspect it. Inspection will save
repair time and may also avoid further damage. Inspect the fol-
lowing for obvious defects:
a. The seating of all tubes in their sockets.
b. Wiring connections on the terminal board.
c. Wiring connections to the switches and meters on the front
panel.
44. Equipment Performance Checklist
a. General. The equipment performance checklist provides a
procedure for systematically checking equipment performance.
All corrective measures that the second echelon repairman can
perform are given in the Corrective measure column. When using
the checklist, start at the beginning and follow each step in order.
If the corrective measures indicated do not fix the equipment,
troubleshooting is required by higher echelon. Note on the repair
tag how the equipment performed and the corrective measures
that were taken.
b. Procedure. Place the tube tester in operation as shown in
the checklist in c below.
48