Chambers Ranges Service Manual
REVISED SERVICE MANUAL
for
"C,,
19ad R
Basic models No. 90-C, 61-C, and 41-C
CONTENTS:
..
.
t t
Installation andAdjusmen..................................................................-7
Mixer Pins
........................
Gas Conversion Data ......
rnerAdjustments
Bu
Thermostat
Pilot Lights
Servicing Your ChainbersRan ge
Adjustment, Calibrating, & Troubleshooting
......................................................................... 6-7
.
Removing Porcelain Panels
Broiler & Griddle
............................................................................
(Oven, Broiler, Top, & Thermowell)
.
...............................................
..
............................................................................................................
.................................
Cut-Away View Of the C-Series Range
Dampers
"Durachrome" Top ...............
Gas Valves
Oven Door, Springs, Rack Runners
Pilot Lights
Thermostat
Service Cabinet
Thermowell Burner, Lid,
Thumb Latch Springs
..
. .
.........................................................................................
...............................
..................................................................................
.
.................................................................................................................................
Components, Servi Removal,
-
....................................................................
Service,
en
. . .
&
Removal..................................................... ........I 6
.
...........................................................
Timer Removal and/or Replacement ..............................................
Special Notes on Oven Condensation
....
..............
...........
...........
Cleaning Your Chambers Range
Nameplate Data, Service Policy, & Guaranty
......
Complete Parts List
Recommending Tools For Servicing Your Chambers Range .
............
.
.
..
. .
.
. . .
..............................................................................2
...
......................
ating,
.. ..
.....................
...
.
...........................................................................
.................................
..
.
...........
........................
.........................
............................................................
.. .. ....... ..
.
........... . .... ......
.
...........
...
.............................................................
Replacement
Replacemnt
&
......................
....
................. ................ ..
.......................
.............. ...............................
...
..
.
.....
.........
..................
Page No.
4-5, 20
........
...............7-8
................
.....
.. . ..... ........
.16
.......
.............
......... 17-18
.. .. ...
......
......22-
..
...........
... ....
.
3-4
-2 1
5-7
5-7
7.16
8-10
12-13
1
3-14
14-16
......
24
25
Chambers Model C, Style 90
I I
12
12
14
I 6
16
17
19
Chambers Model C, Style 61
Design, layout, concept, and notes © 2006-2017 by Todd W. White. Photo's © Chambers Corporation. All rights reserved.
Chambers is a registered trademark
www.chamberstoves.net
of
Michael J. Lee, and is used by permission.
January 2, 2017
Dear
Chambers®
Thank you for purchasing this special,
will assist you in your quest to keep your CHAMBERS range in top operating condition for many, many years to
come.
The Chambers Corporation published two versions of the Service Manual for their C-series ranges, one in 1949,
and another in the middle 1950's. The earlier version was an adaptation of the B-series Service Manual, which had
undergone many changes and updates since the introduction of that series in 1939. Consequently, the C-series
Service Manual inherited several of the built-in irregularities of the B-series manuals. In addition, the last version
of the C-series manual appears to have been more of a quick attempt to put together a "new" Service Manual for
the C-series, rather than be a full-fledged, truly
As I began my journey into the world of
offered by various sources at the time were, typically, nothing but copies of the originals - not one was updated to
include information that modem owners of these vintage appliances needed to know. I also discovered that many
of the copies being sold were not copies of good
sometimes as far out as five generations! Most of the photographs were fuzzy, and the wording on the illustrations
was often difficult to read. When coupled with the erratic arrangement of the text in the Chambers-published
manuals, the ones available to CHAMBERS lovers of today - until now - were poor, at the very least. Not only that,
but the prices people were being asked to pay for nothing more than mediocre copies of flawed originals upset me,
especially when I saw that one company was charging $40.00 for what appeared to me to be nothing short of a re-
typed and poorly copied version of the two earlier, Chambers-published manuals!
Therefore, as I did when with the website, I came to the conclusion that
dearth of good information on CHAMBERS ranges out there. I decided that a really good, updated service manual
for the C-series CHAMBERS ranges needed to be produced. So, I appointed myself as a committee of one to do
just that and got to work. Well, it didn't take me long to realize that I had assigned to myself a project that was a
lot bigger than I anticipated. After redesigning the entire layout (it just HAD to be rearranged into something that
made finding what you want to know easier), scanning all of the original photographs and illustrations (and doing
massive amounts of clean-up of them), and re-typsetting the entire original texts (the best of both editions was
preserved so owners of a C-series range from any production era could use the Manual), I found there was still more
to be done. Editor' s notes and a whole new section on mixer pins were created, and grammatical corrections in the
original text (without altering the integrity of it) were made. Then, all of these changes and additions were inserted
into the text of the this, the
What you hold in your hands is the culmination of approximately
publicly Sam the Stoveman from Uncertain, Texas and Brian Batchely of Ventura, California - both trained experts
and specialists in CHAMBERS repair - for their assistance in correcting the drafts of this Manual. Without their
help, it wouldn't have been possible to finish it. Even though it has been hard work to produce, it is with great joy
in my heart knowing that this
CHAMBERS ranges everywhere, so that they can keep their babies cooking strong for years to come.
Some of the exclusive features found in this
• Completely re-typset text
• Completely new text blocks on most illustrations
• A totally new layout - now you don't have to hunt for everything you need to know about a particular topic
Enthusiast,
C-series Service Manual, Revised Edition.
C-series Service Manual, REVISED EDITION!
new
one.
CHAMBERS
originals,
C-series Service Manual, Revised Edition will
C-series Service Manual, Revised Edition
• New scans of original pictures and illustrations
ranges, I discovered that the service manuals being
but were, in fact, poor
someone
525
• Additional notes and comments for the modem user
It is my hope that it
copies
had to do
man-hours of work. I wish to thank
be of great help to owners of
of copies
something
include:
of originals,
about the
As with all things human, I am sure there are mistakes herein. As of this date, a thorough revision has been
made, removing as many typographical errors as I could find. However, if you discover on that I've missed, do be
so kind as to let me know, and I will make appropriate corrections immediately.
Happy cooking with the gas turned
© 2006-2017 by Todd W. White. Photographs © Chambers Corporation. All rights reserved.
ojf
www.chamberstoves.net
Todd W. White
Sapulpa, Oklahoma
"
C
series
,,
INSTALLATION & ADJUSTMENT
0
CJL4t1J(JLA
Steps for Installing Range
-
As originally published bc the Chambers Corporation -
Gas
®
Ranges
REMOVE CRATE:
bottom and lift off entire crate. Break metal bands holding base
assembly and top packing. Leg bolts, nuts, washers, and base
brackets are packet in Thermowell, or in the Service Cabinet
of non-Thermowell models.
Pull out all accessible nails around crate
MOUNT BACK PANEL
in
Super Deluxe (High) Back with Lamp
..............
.
............
..................
PUT ON LEG BOLTS:
and remove four bolts holding crate bottom to range.
Place lock nuts on leg bolts and thread into tapped holes
next to square holes from which crate bolts were removed.
Make sure lock nuts are tightened against corner gussets.
The range can now be placed on its legs.
Special Deluxe (Low) Back - no Lamp
Tilt range on an appliance dolly
Remove molding from range before mounting Back Panel.
1.
Insert one screw only in each corner, leaving nuts loose enough
2.
to slip molding in between range top and bottom edge of panel
(see Fig. 2).
Insert molding in one end as shown in Fig. 3. Slip flange of
3.
molding in between the Panel and the range top and snap the
molding in place on the opposite end - around the corner bolt.
Now insert four bolts in the four remaining holes. Fibre shims
provided are to be used between the range top and molding to
tilt the Back to proper alignment if necessary. As bolts are
tightened, push molding in to get a good snug fit against the
Back Panel.
Under Side View
4.
On Super Deluxe (High) Back Models: Remove nuts and clamp
plates on under side of tray. Set tray on back, over opening, so
that the flanges on tray are outside of the flanges on Back.
Mount clamp plates on the threaded studs and run nuts up snug.
Clamp plates must be positioned as illustrated (see Fig. 4).
Remove three bolts across top of the Body Back. Place
5.
Insulated Back in position shown in Fig. 5 with the top of the
flue vent forward of the Back panel cross bar. Then, slip the
Insulated Back up into place snapping the 45
over the main Body Back to make a snug fit. Reinstall the three
bolts.
Hook up to gas and plug the light cord into outlet.
6.
bottom flange
'
Low-Back On
61-C Mounts
Exactly Like
The High-Back
On The 90-C
C-series Service Manual, Revised Edition - Page 2
INSTALL BACK PANEL
The Back (high or low) comes in a separate carton along with the
Insulated Back, chrome tray and a paper envelope marked "Shims
For Aligning Backs"
(see preceding instructions and pictures).
ATTACH BASE BRACKETS
With sheet metal screws, attach the non-interchangeable Base
Brackets in the holes provided in the lower part of the rear of the
frame of the range. The small folded edge of the bracket must
protrude forward to receive the clip attached to the base end panel.
MAKE GAS CONNECTIONS
copper or aluminum
The gas connection should be made with
tubing with proper fittings. The line from the meter should be rigid
pipe, protruding through the floor a short distance from the base
board, and should be provided with a shut-off valve. Under no
circumstances should tubing go through the floor.
Ranges are to be mountedflush
taken to see that the rigid pipe is located to the rear of the range
between the two end panels. Remove the enamel tray in the Service
Cabinet of the range, giving access to the Manifold. Hook tubing
to rigid pipe back of the range, and make bends in tubing for
correct alignment through round hole behind the range. Move the
range all the way back against the wall and hook the tubing to the
Manifold. Check all joints for leaks with soap suds or pressure
[NOTE: Today, it is recommended that aflexible gas line
gauge.
that has been designedfor use with gas stoves, and isfultv A. G.A.
approved, be used, rather than the solid tubing specified originally.
In addition, it is recommended that a flex line with an ID. that
comes as close as possible to matching the ID.
(input pipe) be used. Also, it is wise to use Teflon® tape or pipe
dope, where applicable, to prevent leaks, and, while this should
eliminate leaks, they must still be checkedfor. - Ed.]
5/8"
to the wall,
and care should be
the Manifold
of
LEVEL RANGE
First, loosen the lock nuts on the adjustable leg bolts; then use a
wrench on the square shoulders of the leg bolts to turn them to
desired height. Check the sides of cooking top with a level that is
at least 9" long. Make the Top Burner Grates as level as possible in
both directions.
frame, making sure the leg bolts do not move in the process.
After range is level, tighten lock nuts against range
LEVEL OVEN RACK RUNNERS
There is an approximately 1/2" adjustment on the Oven Rack
Runners for leveling the racks. Place a level on the oven rack and
force the runners up or down as desired. After oven rack is level,
place a shim, such as nut or washer, under the bottom end of rack
runner and force the runner down tight.
MAKE SURE RANGE IS FLUSH TO THE WALL
C Models are made to be pushed back until the entire back end
panel edges are touching the wall. In some cases, it may be
necessary to notch out the base board to accomplish this.
ASSEMBLE AND PUT ON BASE
There are three black base panels - one front and two ends.
Necessary bolts and base brackets are found with leg bolts.
Assemble base ends to front. Place speed nuts on base front clips
and bolt base front panel with black bolts and washers. Place
assembled base under range, forcing clips over leg bolts, while at
same time making sure that the base ends panels slip onto brackets.
MIXER PINS
EDITOR'S NOTES:
two different Mixer Pins - one type for the top burners, and a
different (larger) type for the Oven, Broiler, and Thermowell
burners. The type of Mixer Pins, Points, and Orifice Caps installed
at the factory was dictated by what kind of gas the range was
originally built to operate on. There are three types of Mixer Pins
(some call these "housings") used in Chambers C-series ranges, and
each has a different shaped outlet for the gas:
nosed),
(pointed WITH a hole in the middle).
Pointed
Must Determine Which Type
You
And Orifice Caps Your Range Has On It Now.
It is presumed that all of the valves in your range have been set
for the same type of gas. You will need to determine what type of
gas your range is set up for. To do so, you must access each burner
in the range by removing any items that may prevent you from
reaching the burners and the Mixer Pins (i.e., Grates, Drip Rings,
the Service Cabinet Shelf, etc.).
Once you have gained access to the burners, remove the
particular burner you are examining. Look at the Orifice Cap,
which was inserted into the "tail" of the burner. Make note of how
far down onto the shoulder of the Mixer Pin it is setting. Using a
wrench,
Note the type of Point used on the Mixer Pin
or
size opening is drilled into the Orifice Cap. These things will help
you determine what type of gas the range is set up for. Write this
information down and re-assemble your range.
for, you are now ready to calibrate the burners, or make the
necessary changes needed to use a different type of gas than that
which your Chambers Range is currently equipped to use.
carefully
Universal).
After having determined the type of gas your range is set up
FOR RANGES WITH SOLID MIXER PIN POINTS:
Oven, Broiler, and Thermoweil
pictures of the same Mixer Pin used on the Oven, Broiler, and
Thermowell burners of C-series Chambers ranges that are
outfitted with Universal Mixer Pins (see Figure 6, Page 4). The
type of Orifice Cap and Point installed on these Mixer Pins
depends upon which type of gas is used. Each range was shipped
from the factory set up for a specific type of gas. If it was set up for
anything other than L. P. Gas, the Mixer Pins would have been
outfitted with a
hole in the middle), and an Orifice Cap corresponding to the type
of gas it was intended for.
The three images to the right of the top valve show the tops of
three different Orifice Caps that can be used with Point #4982.
Note the different sized holes in each cap - these were specifically
made for use with the gas and burners listed, and should not be
used for any other type of gas or on any other burners but these.
The lower picture of the same Mixer Pin shows how it would
have been assembled at the factory if it were ordered for use with
L. P. Gas.
which is screwed down tightly against the shoulder of the Mixer
Pin.
Note the absence of Point and the fixed Orifice Cap,
All Chambers "C" model ranges came with
No Point
hole in middle), and
(pointed with
unscrew the Orifice Cap from the Mixer Pin.
Using the illustrations on Page 4, check to see what
no
Mixer Pins, Points,
Of
(No Point, Pointed,
- On Page 4 are two
(snub-
Universal
not
Point (part #4982-this is a solid pin with
sharp
no
C-series Service Manual, Revised Edition - Page 3
PART #
MIXER PIN
OVEN. BOILER,
FOR
& THERMOWELL
PART C132
-
N()I'E
'i' IGIIT
THIS
-
TotLD::
"-
POI VF
4982
FIXED ORIFICE
- FIGURE 6-
OVEN, BROILER, & THERMOWELL MIXER PIN
WITH A SOLID POINT
Top Burners
used on the Top Burners of C-series ranges that are
with Universal Mixer Pins (see Fig. 7). The type of Orifice Cap
installed on these Mixer Pins depends upon which type of gas is
used. Each range was shipped from the factory set up for a specific
type of gas. If it was set up for anything other than L. P. Gas,
the Mixer Pins would have been outfitted with a
(part #4982
Orifice Cap corresponding to the type of gas it was intended for.
-
Below are two pictures of the same Mixer Pin
-
hole in the middle), and an
this is a solid pin with
no
not
outfitted
sharp
Point
of mixer pin eliminated the needfor different types of
type
This
mixer pins, pin points, and orifice caps. Rather than changing out
the Orifice Caps, all that has to be done to convertfrom one type
of gas to another is to adjust the Orifice Cap on the Universal
Mixer Pin to the appropriate size opening, and that's it! The secret
it has a hole drilled through the middle, whereas
is the Pin Point
-
previous pin types had no hole in the point, or no point at all.
Adjustments are easy and quick to make.
-
Ed]
Below are pictures of the two different-sized Mixer Pins used
Chambers C-series ranges that have
on
Universal Mixer Pins
(see
Fig. 8, below). The Universal Mixer Pins have a Point with a hole
the middle that is designed to allow the burners on the C-series
in
all that is necessary to change
range to be used any type of gas
from one gas type to another is to adjust
-
the Orifice Cap to obtain
the proper size opening.
Pin Points may be removed or replaced in the
NOTE:
Mixer
Mixer
Pin, but it is very difficult and should not be attempted by
anyone other than qualified service personnel with the proper tools.
C-82-C
-
MIXER PP
FOR OVEN. BROILER. & T-WELL
PART #
I
LF
P
O
J *NVIF -
11 Z 11' #
~
PA
MFG.. MIXED & NAT. GASES
I.. P. GASES
449
9
44
FG. GAS
-
--
PART # 4825
NOTE
AGAINISTSHOULDER
MIXER PIN
FOR TOP BURNERS
-.-7
.
M
46
\
POINT
THIS CAP TIGHT
-
JIXED ORIFICE
-FIGURE
PART # 4982
-
7-
GAS
GAS
P.
NAT. GAS
i6
IXED
M
i
L.
TOP BURNER MIXER PIN WITH A SOLID POINT
The three images to the right of the top valve show the tops of
three different Orifice Caps that can be used with Point #4982.
these were specifically
Note the different sized holes in each cap
-
made for use with the gas and burners listed, and should not be
used for any other type of gas or on any other burners but these.
The lower picture of the same Mixer Pin shows how it would
have been assembled at the factory if it were ordered to be used
with L. P. Gas. Note the absence of Point and the fixed Orifice
Cap, which is screwed down tightly against the shoulder of the
Mixer Pin.
U. P. GASES
FOR L. P. GASES
DOWN TIGHT
IIG1ll'
DOWN
MIXER PIN
FOR TOP BURNERS
PART # 482-C
-
NOTE - CAP
AGAINST POINT FOR L. P. GASES
MFG.. MIXED, & NAT. GASES
4994
PART 4
POINT -
(p
NOTE
.
AGAINST POINT
SCREWED
SCREWED
- FIGURE 8-
UNIVERSAL MIXER PIN
(NOTE HOLE DRILLED IN CENTER OF PIN POINT)
GAS CONVERSION
I. CONVERSION WITH SOLID MIXER PIN POINT
When changing from Liquified Petroleum Gas to any other gas
and the solid Mixer Pin Point is used, it is necessary to change
all Orifice Caps according to the chart for solid Mixer Pin
Points found on Page 20. When converting from all other types
of gas to
is used, it is also necessary to change all Orifice Caps (see Page
20), making sure the long Cap is tight against shoulder and a
good thread sealer is used. Remove the solid Mixer Pin Point.
Liquified Petroleum Gas and the solid Mixer Pin Point
FOR RANGES WITH UNIVERSAL MIXER PIN POINTS:
[Note: Later production models of the Chambers C-series
ranges were equipped with what is called a Universal
Mixer Pin.
C-series Service Manual, Revised Edition
Page 4
-
2. CONVERSION WITH UNIVERSAL MIXER PIN POINT
The Universal Mixer Pin is equipped with a Point drilled out for
L.P. or Bottled Gas on all ranges. If the range was originally
built for Bottled gas, the Orifice Cap will be tight against the
Mixer Pin Point. If the range was built for any other gases, the
Orifice Cap will be adjusted to supply the height flame desired
according to the instructions given in the preceding section of
this Manual.
ADJUST BURNERS IN THE
FOLLOWING
GENERAL INSTRUCTIONS ON ADJUSTING BURNERS
There are three parts to every gas burner that are used in the
adjustment of the air/gas mixture necessary to give proper
performance of said burner. They are: (1)
(2)
The Air Mixer Shutter Screw;
Ed. Note:
its screw, adjusts the air/gas
Orifice Cap adjusts the
Both are to be adjusted, as indicated herein, until a proper flame
size and color is achieved. Refer to the illustration below, which
shows a Top Burner, Mixer Pin, and Orifice Cap as a general guide
to the understanding of how gas burners are constructed and
adjusted.
The Air Mixer Shutter, which is held in position by
mixture
amount
AIR MIXER SHt
ORDER
The Air Mixer Shutter;
and (3)
of gas flowing into the burner.
The Orifice Cap.
going into the burner. The
1
TTER
OVEN BURNER
A
T
n
r\
OVEN SAFETY PILOT
This assembly provides 100% shutoff (main and pilot gas) and
main gas flow for safe lighting. The pilot valve, along with the
main valve, is controlled by an electromagnet, and both close
simultaneously in the event of pilot outage.
To Light And Adjust The Automatic Oven Pilot (refer to
illustration below):
Turn off main burner gas supply valve.
1)
Remove pilot adjusting cap (A) and turn pilot key to the
2)
full open position.
Push the red button (B) in firmly and light pilot burner (C).
3)
While holding red button (B), turn the pilot key so that the
flame completely envelopes the end 3/8-inch of the
thermocouple (D). The pilot air shutter (E) should be
positioned to produce a soft blue flame.
Allow pilot to burn one minute, then release red button (B).
4)
Pilot should continue to burn. If it does not, press red
button (B) and relight the pilot, holding for a longer period
before releasing.
Valve will now hold open permitting the free flow of gas to
5)
the main burner.
T:
(for units with afactorv-installed oven safety pilot)
FULL SOFT
BLUE CONE
RIFICE
to increase or decrease
AIR MIXER SIJUTTER SCREW
Loosen with screwdriver
and move Air Mixer Shutter
by hand. Tighten screw
after proper air adjustment.
OVEN BURNER
The Oven Burner flame should be an approximately 3/4" soft cone,
when on maximum, with a By-Pass flame height of not more than
1/8". Liquified Petroleum Gas has a fixed orifice cap and requires
an air adjustment only. Correct input is 21,000 B.T.U. per hour for
all gases.
To Adjust Oven Burner:
Set thermostat dial at
full. Remove the bottom of the Service Cabinet and adjust the flame
by moving the Air Mixer Shutter and Orifice Cap until there is a
3/4" soft blue cone on each port (see illustration in next column).
[NOTE: The Shutter is a flat, bell-shaped metal plate that is
fastened to the bottom
is
the part that inserts into the burner "tail
place. - Ed.]
(PartNo. S-139-C)
4000;
light oven burner and turn gas on
the "tail"
of
of
the burner. The orifice cap
WV
"
when the burner is in
c.1
of eas to burner.
ROBERTSHAW Gas Lighter, Model TS-11, Type C
(Extra or optional equipment on later-production C-model ranges)
CAUTION:
wrench (approx. 3 or 4 inches) should be used. Run nut down as far
as possible with the fingers. Set lockwasher by making an
additional 1/4 to 1/2 turn of the wrench.
When retightening the thermocouple nut, a small
NOTE:
Poor contact between the thermocouple lead
and the electromagnet assembly may cause the
valve to be inoperative, even when the pilot light
is in proper adjustment and position. If so, the
contact points should be cleaned and tightened.
This is done by disconnecting the thermocouple
(D) and carefully cleaning the part that makes
contact with the electromagnetic assembly.
C-series Service Manual, Revised Edition - Page
5
OVEN BYPASS
Turn the thermostat to 70° (two vertical marks on dial). Move hand
adjustment pin located on right bottom side of the Robertshaw
thermostat until the minimum
THAN 1/8' HIGH! The by-pass flame should continue to burn
when oven door is opened and closed normally with the baffle plate
in place (see illustration below).
OVEN BY-PASS
(for units without a facto rv-insralied oven safety pilot)
soft bead flame is
,
BY-PASS BEAD
FLAME
MORE
NOT MORE
Nor
THAN 118"
THERMOSTAT ADJUSTMENT AND CALIBRATION
Place a reliable thermometer in center of Oven, light burner, turn
the gas on full. and set dial at
of twenty minutes and one additional reading at twenty-five
minutes. If the readings are the same, the oven temperature is
constant and should correspond with the dial setting. If the
temperature reading is more than
the dial. loosen the two small calibrations screws and recalibrate as
follows:
. For units with
Move front sub-dial plate to correspond with temperature
in oven. Do not
together. Tighten screws and replace dial.
. For units with
ranges with serials #2-11016 through #2-18488): Both
front and back sub-dial plates must move when
recalibrating. Shaft must
metal wedge in shaft slot, and set dial to correspond with
temperature in oven. Tighten screws and replace dial.
BROILER BURNER
Correct flame height on the Broiler Burner is between
b!ue cone
gas
adjustment. having a fixed orifice. Correct input is 15,000
no
B.T.U. per hour for all gases.
To Adjust Broiler Burner:
Rmo\
Brler Burner and turn gas on full. Adjust the flame by moving the
rn:\r shutter and orifice cap (accessible by removing rear top
bumr crate and drip ring) until a
ob:a:ned isee illustration below). Make sure bolt holding mixer
shcrr
the rear Top Burner Grate and Drip Ring. Light
C
tiht.
i5
Wilcolator Model 5400
(PartNo. 5-114-C)
on all gases. Liquified Petroleum Gas requires
4000.
Take a first reading at the end
200
from the dial setting, pull off
Robertshaw Model 2200S
move back dial plate and shaft (fastened
thermostats (used on
move. Hold screwdriver or
not
1/4" to 3/8" soft blue cone is
thermostats:
1/4"
and
TOP BURNERS
The three Top Burners should have a
approximately 3/8" in height for all gases. Liquified Petroleum Gas
requires no gas adjustment, having a fixed orifice. Correct input
7,500 B.T.U. per hour for L.P. Gas. and 9.000 B.T.C. per hour for
all other gases.
To Adjust Top Burner:
Remove Grate and Drip Ring. Loosen bolt going through the
Burner in order to make it possible to move the flat plate ish::er
on the bottom until the proper flame is obtained. Light the burner.
turn the gas to full, and adjust flame by moving the mixer
shutter and orifice cap until a
illustration above). Make sure the bolt holding the mixer shutter
tight after final adjustment. Attach the flash tubes to the pilot
baffles, and fit them snugly into the flash ports on each Top Burner.
THERMOWELL BURNER
The Thermowell Burner should have a
of approximately 3/8" in height for all gases. Liquified Petroleum
Gas requires no gas adjustment, having a fixed orifice. Correct
input is 7,500 B.T.U. per hour for L.P. Gas, and 9,000 B.T.U. per
hour for all other gases.
To Adjust Thermowell Burner:
Open Service Cabinet Door. Light the Thermowell Burner and
turn the gas on full. Adjust the flame by moving the mixer shutter
and orifice cap (accessible by removing the rear top burner grate
and drip ring) until a
illustration below). Make sure the bolt holding mixer shutter is
tight.
BROILER, THERMOWELL,
AND TOP BURNERS
(PartNo. 5-120-C)
318"
soft
(PartNo. 5-130-C)
1/4" to 3/8" soft blue cone
APPROXIMA TEL Y
soft
blue cone
soft blue flame
318" SOFT
BLUE CONE
blue
is obtainedee
is obtained (see
flame
of
nnnnnn
LOWER FLAMES ON LP GAS
Burner flames on bottled and tank gases are lower than those
illustrated above. On L. P. gas, orifice caps should be screwed
down tight onto the universal mixer pin with gas admitted only
through the mixer pin points (see illustration below).
UNIVERSAL
MIXER PIN
is
is
BROILER, THERMOWELL,
APPROXIMA TEL Y
ANDTOP BURNERS
nnnnm:L
La' griddle-grease-drip-pan in place in back of Broiler Box.
Gnddle and Sizzling Platter should be moved up and down to
.hk for mechanical smoothness (see Page 8 for adjustment
]ìformation).
3/8" SOFT
UE CONE
L
THERMOWELL AND TOP BURNER PILOTS
The pilot adjusting screws are accessible through the Service
Cbinet. Adjust both pilots to about 1/2' height. These have no air
aiustment. and, therefore, burn with a slightly yellow tip.
C-series Service Manual, Revised Edition - Page 6
' G.. AlIXELI, & NAT. GASES
AGAINST POINT
L. P. GASES
CREW'ED DOWN TIGHT
FOR L. P. GASES
CHECK FOR LEAKS
Turn on each burner separately and check all joints and hook-up tubing for leaks. This can be done with soap suds or a pressure gauge.
PILOT FILTER
[EDITOR'S NOTE: Chambers C-series ranges came withfilterfor the gas that supplies the Top Burner and Therinowellpilot lights.
Thesefilters came equipped withflame level adjustments, andprevent unwanted debrisfroin clogging up the small tubesfeeding the
pilot lights.
Sometimes, thefilter can allow a piece of unwanted material to be passed into one of the tubes, or can become clogged internally
itself, resulting in a dead pilot light. If this happens, determine whether the obstruction is in the line or thefilter by turning off the
main gasfeed to the range, disconnecting the tubing connected to thefilter thatfeeds the inoperative pilot light, and gently blowing
compressed air through the tubing. In most cases, this will clear the problem.]
SCREW
ASSEMBLY
PART 44992
SCREW
____J
TOP PILOT ADJ.
'—THER1OWELL PILOT AIM.
PILOT FILTER ASSEMBLY
FOR ALL GASES EXCEPT L. P. GASES
HO W TO RE-CHECK TROUBLESOME THERMOSTATS
Thermostat Does not Respond To Calibration (see Thermostat Adjustment
If
I. DIRT OR FOREIGN MATTER UNDER VALVE SEAT
Remove thermostat from range according to instructions on
Page 16. The thermostat is made in two sections and is held
After removing these
together with four bolts (see Page 1
bolts, the valve and seat can be cleaned and the thermostat
reassembled. Be sure the tube from the gas valve is on the inlet
and the tube leading to the Oven burner is on the outlet side of
the openings, which are plainly marked.
BY-PASS AND SAFETY PILOT NOT ADJUSTED PROPERLY
2.
If the by-pass is too high, the thermostat will not maintain a
low enough temperature to bake properly. If it is too low, the
flame height is approximately 1/8",
burner will go out. Correct
-
or a flame that stays on the burner when the Oven door is
opened and closed. Oven safety pilot (on units so equipped)
height is approximately 1/2".
5).
I Calibration, Page 6), Then Look For The Following Possible Problems:
3.
4.
~
TOP PILoT AI)J. SCREW
ASSEMBLY
THERMOWILL PILOT ADJ.
THERMOWELL ItLOT
PART # 4993
SCREW
MANuAL SHUT-OFF VALVE
PILOT FILTER ASSEMBLY
FOR L. P. GAS ONLY
CAPILLARY TUBE AND BULB DAMAGED
To determine whether or not the thermostat has lost its charge;
light the Oven and turn the dial back to
stop. The flame should change from the maximum of 3/4" high
to a minimum of 1/8" high. Turn the dial up to
minutes, and then turn the dial back to the stop again. If the
charge is lost, the flame on the burner will not drop down until
the dial reaches the stop. If the flame drops down somewhere
and the stop, then the charge is not lost;
between 400
'
therefore, calibration should be run with an accurate oven
thermometer.
700
or until it hits the
4000
for 4 or
UNIT OUT OF CALIBRATION
If the Oven temperatures are incorrect, calibrate according to
the instructions, "Thermostat Adjustment and Calibration",
found on Page 6.
5
To REMOVE PORCELAIN PANELS
-
I. MAIN FRONT PANEL
The porcelain front panel is held in place by seven bolts
at the top, three at the bottom, and one located between the
timer and thermostat. One is reached through the hole in the
front of the broiler box on the left side; one through the left
front top burner opening in the center of the range; and one
through the right front top burner hole. The one through the
timer and thermostat may be reached through the Service
Cabinet door. The three on the bottom are found; one
underneath the Service Cabinet bottom and two under the
baffle plate in the oven. Remove thumb keys by lifting up and
pulling out. Remove griddle lift, broiler adjustment, and gas
valve handles by loosening the 1/4" allen set screws. Remove
keeper by inserting a 1/4"pin or screwdriver into hole on
underneath side and back it off (counterclockwise) the
threaded stud. Remove front by holding onto each side and
-
C-series Service Manual, Revised Edition - Page 7
three
carefully pulling out.
END PANELS
2.
The two end panels are interchangeable and can be removed
by loosening (but not removing) the two 3/8" nuts located on
the bottom side of the panel; pull the panel out at the bottom
until the top edge drops away from the on the Duracrome top.
Shift the carriage bolts into the extra slots provided bottom
edge of the panel, if panel is to be shifted to the other side of
the range.
OUTSIDE OVEN DOOR PANEL
3.
Remove the inside oven door lining by taking out the four
bolts and asbestos washers from the four corners of the lining,
along with the entire amount of rock wool insulation. The oven
door handle block is removed by taking out three bolts, being
careful not to lose the small sleeves which fit between the door
block and the cast iron door frame. Remove the four nuts at the
corners of the cast door frame; drop panel down,
being careful not to chip the bottom side of the door next to the
main front panel.
PLEASE NOTE:
When replacing the oven
door panel, the wool must be evenly and carefully distributed
inside in order to maintain the proper retention of heat.
4. SERVICE CABINET DOOR PANEL
First, release the two springs which are attached to the Hinge
leaf. Then, remove the five bolts and asbestos washers from
the inside of the cabinet door lining.
S. BODY BACK
The Body Back is held in place by eight bolts; three on each
side of the range in the vertical angles, and two long bolts in
the center of the Oven.
TO SERVICE MECHANICAL PARTS
-
I. BROILER AND GRIDDLE:
A. BROILER BURNER ADJUSTMENT
If the broiler burner is crooked, loosen the two Bell
1.
Bearing Adjustment Bolts; force the front of the
Burner in the desired direction and distance, and
then tighten the bolts (see Fig.9, right).
To move the entire Broiler Burner, loosen the
2.
Coupling Bolt Lock Nut and pull Broiler Burner up
out of the Broiler Burner Coupling Bolt: thread bolt
in or out as desired, then replace Burner and tighten
Nut (see Fig.9. right).
B. BROILER BURNER REMOVAL
To remove the Broiler
by pulling it straight forward. Place the right hand on
the front of the burner; and the left hand on the rear
directly over the pin that points down. Pulling up and
out with the left hand will free the burner.
Burner,
LLAJ
BROILER BURNER ASSEM8LY----
'—
DURACROME
Th-
-
8DILER
I
]\
\
\
s_
BROILER
Lft
\
COUPLING
—
STUB SHAFT BEARING
,F--BROILER BOX
HULL END SHEET
END PANEL
CUT-AWAY VIEW OF BROILER BOX
SEEN
(AS
\
\
TOP
\ \
BURNER.
BOX
BURNER COUPLING BOLT
BOLT LOCK NUT
COUPLING
SPACER
- FIGURE 9-
FROM FRONT)
first remove the Griddle
BEW BEARING ADJ BOLTS
MIXER SHUTTER LOCK BOL
_
BELL BEARING—
MIXER SHUTTER
MIXER PIN
1
-
-
RF\R SI, ING
BROILER
6RIDDLF
LIFT
ii:vii
REAR BROILER SLING
BRO
CASTING
PRING EVIl BOLl
SHAFT
STIRINC,
BROILER FRONT SLING ADJ
LR11)T)II S
6RIDDI-
ER H()\
IL
. BRACKET
/-GRIDDLE LIFT SPRING
F
III,
U
PPORT SCREWS
Lo~ K M'
1
IF\FR(O\\LTJLR0D-
SPRIN6, LEVER
OVEN 1)00K
SPRINGLEVERTAPPLAT1E
SPRING LEVER HEARING PLATE
GI.II)i)LE LIFT HANDLE
GRiDDLE
ROILERBI.'RNERSHIELD
STOP R()I) RIVET
-
COOKING TOP
F
or
GRIDDLE LIFT
6EARS
-
S
CREW
-Figure 10-
LEFT SIDE VIEW OF BROILER & GRIDDLE ASSEMBLY
-
C-series Service Manual, Revised Edition
Page 8
Loading...