Rules Of Good Repair Practices; Disassembly - Sunbeam T20B Service Manual

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4 -
RULES OF GOOD REPAIR PRACTICES
The success
of
the repair depends upon the repairman'
s
ability
in
following the rules of
good repair practices. These rules can
be
summed up
as follows:
1.
Read the Service Bulletin thoroughly.
2.
Know what you are looking
for.
Never guess. Always investigate the source
of
trouble. Ask,
if
you do not know.
3.
Determine troubles by the process of elimination.
4.
Every part, no
matter how
small, has
a
job to perform.
Do
not overlook the
smallest detail.
5.
Use the proper tool. Keep tools
in
efficient working order.
6.
Carefully handle
smooth, plated, or
Bakelite parts
to
prevent damaging
or
scratching.
7.
Make
the
repair like you would want
it, if
you were the customer.
A.
DISASSEMBLY
1.
Place Toaster onto Tool
No.
1,
bottom
side
up,
protecting
the Shell from being
scratched. Pry off Adjusting Knob, Key
No.
(26).
Remove Screws
(28)
and Washers
(27)
from Bottom Cover Assembly
(29)
along with Screws
(30)
from center of Hinge Plate
of
Bottom Cover Assembly. Lift Base
(25)
off of mechanism assembly and remove Hex Nuts
(7)
with Washers
(8)
from Mounting Plate Assembly
(20).
Separate Plug and Cord
Assembly
(24)
from Base.
Pry Cord Clip
(23)
from Mounting Plate Assembly
(20).
Remove
Screws
(2)
releasing End Shells
(5)
and Center Shell
(1),
then lift mechanism assembly
from Center Shell
(1)
.
2.
Set
mechanism assembly
on
end
so
that Thermostat Assembly
(12)
is
facing
up.
If
Toaster
is
a
model
T20B,
remove Carriage Counter Balance Spring
(3A)
.
Four turns of
the Spring Hook over the End Top Plate
(3)
and the loop end hooks through the hole in
the Bread Lifter Assembly
(17)
Remove Screws
(13)
with Washers
(8)
separating Switch
Lead
(21)
and Upper Lead Bracket from Thermostat Assembly
(12).
Raise Thermostat
Assembly until Reflector clears window
in element,
then slide
it
clear of mechanism.
Remove Nut
(7)
and Washer
(8)
on
Mounting Plate Assembly
(20)
disconnecting Switch
Lead
(2
1).
Release Guide Wires
(9)
from Mounting Plate Assembly. Set mechanism back
into upright position
to
remove Hex Nut
(7)
and Washer
(8)
from Center Element
Assembly. Use offset screwdriver
to
hold stud when loosening
or
tightening Hex Nut
(7).
Then remove Screws
(2)
lifting End Top Plate
(3)
with Guide Wires and Window End
Assembly
(11)
from mechanism, being careful
so
that the Guide Wires do not catch in
the Element Wires and Rack. The Upper Bus Bar
is
part