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Maintenance
7901A
Table 5-1. Required Tools and Test Equipment
TEST EQUIPMENT AND TOOLS
Oscilloscope
Dual Channel Vertical Amplifier
Time Base
Probe, 10: 1 (Quantity 3)
Probe, 1: 1
Current Probe Kit
Digital Voltmeter
DC Multi-Function Plug-In
Probe
Disc Service Unit.
Diagnostic Program
Extender Board
AI ignment Cartridge .
Head Adjustment Tool
Mylar Shim (0.005 Inch Thick)
Alcohol (6 oz. Bottle)
Head Cleaning Tool
Head Installation Tool (Quantity 2)
Kimwipe Tissues (Type 900-5)
STANDARD TOOL KIT
Posidrive Screw Driver
Posidrive Screw Driver
Long Nose PI iers
Wire Cutters
Screw Driver 4 x 1/4 Inch
Screw Driver 4 x 1/8 Inch
Wire Stripper
6-lnch Steel Rule.
Soldering Iron.
Inspection Mirror
IC Pin Clip
Socket Keys
5-12.
INSPECTION.
5-13.
Inspection routines should be performed according
to schedule given in table 5-2. Inspection procedures are as
follows:
a. Inspect
read/write
heads
for
contamination
and
damage.
b. Inspect carriage rails and bearings for cleanliness, wear,
and damage.
c. Inspect encoder plate for contamination and signs of
rubbing.
d. Inspect front door filter for cleanliness.
e. Inspect front door for cleanliness.
5-2
RECOMMENDED
MODEL AND PART
NUMBER
HP 180A
HP 1801A
HP 1821A
HP 10006A
HP 10008A
HP 456A
HP 3439A
HP 3444A
HP 10025A
HP 13219A
13041 -60001
07900-60014
1535-0066
07900-60044
1535-0861
8500-0559
07900-00091
1460-1333, 1460-1334
9300-0001
Stanley 2951
Stanley 2952
Xcelite 71CG
Xcelite 74CG
Xcelite R-144
Xcelite R-184
K-Miller 101-S
General 616
Ungar 6010
G.C. Electric 6090-P
A-P, Inc.
Xcelite 99PS-40
f.
Inspect drive belt for fraying and possible damage.
g. Inspect all hardware for looseness or missing parts.
h. Inspect cables and connectors for damage or looseness.
i.
Inspect spindle to ensure free rotation. Mounting screws
must be tight.
j.
Inspect spindle discharge contact for looseness and
replace annually.
k. Inspect linear motor air gap for accumulated particles.
1.
Inspect casting and cartridge receiver for cleanliness.
m. Check voltages from power supply for proper levels.
n. Inspect lamps and switches for proper operation.
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