Transcript
II fl
srurcoxs
DCATS
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TECHNICAL
De,partment 731.4. Tbronto
FLASH T.F. 26-23 ApriL 7, 1983
SEF?VICE INFORMATINN *^
CGNMPACTP(}&TAtsLE
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T.F. 26-23
INDEX
PAGE
I
General . . . . . . . . . . . . . . . . . . . . . ' . . . . .l
II
Specifications............... .....2
III
BasicOperation....o...o..........3
IV
Disassembly. . . . . . . . . . . . . . . . . . . . . . .4
V
TroubleShooting..................18
-1-
T.F.
SERVICE INSTRUCTIONS COMPACTPORTABLE DRYER
I.
GENERAL electric This is a portable 60 hertz. I20 volts,
dryer
It is equipped with a Ehree-wire THE UNTT MUST BE GROUNDED!
designed
cord
for
to oPerate
use in
efficiently
a grounded
on
receptacle.
it would be advantageous, as with Although noE necessary for operation, any dryer, to vent this unit to the outside whenever and wherever (See specification section). possible for maximumefficiency. The reset button must be pushed to re-start door is opened and closed.
the dryer
each time the
except The rear panel must be rercved for urost servicing pulley spring. and idler belt, or a displaced drive
to re-position
Ttte brown area of the dial is heat, The timer controls drying time. except the last 7 minutes of the cycle, which is a cool-down period. The orange area of the dial is air (no heat) only. not run with the door oPen. l{hen the door is closed, the unit will it pushes in the switch shaft (Pig. I), however, the door switch is not yet activated. is When the reset button it turns the depressed, to activate switch shaft the door switch. Drying tsime depends on size and type of load, suffivoltage, and an cient both adequate air supply, intake and exhaust. For efficient operation, should be the dryer of operated on a circuit its own, and extension cords or other similar should not be used. devices
26-23
-2-
rr.
T.F.
26-23
SPECIqrgaT-IoNS. 16" deep, 24" wide
Size
31" high,
Weight
84 Ibs.
Drum Diameter
zL-I/2"
Drum DePth
12-3/8"
Drum Speed
56-58 R.P.M.
Element
12OOWatt 4 Anps
Rating
Motor
I/6
Horsepower
L250
Thermostat
Cycling External
Venting
"\--
2000
Thermostat
Hi-Limit
(17 Gauge Nichrome Wire)
(te
Used)
S" pipe,
12' maximun length:
2-9Oo elbows
Lint
Filter
Drum Drive Blower
Drive
Location
fnside
drum--rear
Poly-vee Direct
maximum
belt
off
off
centre of motor
of motor
-3-
T.F. 26-23
\ III.
BASIC OPERATTON
(,FHtl(lUER CUT.tsffiY UIEH DffYEN stxE stcg,fttrfis
T}€RilOStAI
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HETilt8 AIHAfi
rpoR
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f, rl
,1,
mr nile
7
ffilrsrAT lcofinuj
tntfl
l illsrm rx,cT
TXHAUST
:? FIG. 2 When the motor is energized, the drum rotaCes and the blower starts. Air is drawn in through the rear panel rouvers, top and bottom, across the heating elerent and into the drum. All air must then pass through the lint filter, down and out the exhaust duct. NCIE: A clogged lint filter or exhaust system will decrease air flow and increase drying time. The filter should be cleaned after each load is dried.
-4-
IV.
T.F. 26-23
DISASSEMBLY BE SURE THE UNIT IS UNPLUGGED A.
Rear Panel Assembly thermostat, The rear panel assembly includes fan housing, cycling g r o u n d p l u g s , s t r a p , attachment s e a l , h o l e felt rear drum bearings, cord and exhaust deflector' The rear panel is
panel secures the drum in position, removed, the drum is loose.
therefore,
Beartngs
when the
Hole Plugs Felt
Fan Houslng
Seal
Cyc.1.1ng Thermoscat Exhaust D ef I e c t o r -O U T SI D E
TNSIDE
A t E a c h m e nt Cord
FIG. 3 To Remove front. Lay the dryer on its with a block of wood or box
Be sure to block the top edge damage to the timer knob. to prevent
Remove the fourbeen (f4) L" hex head screws which secure the NOTE: A grounding washer is under one screr". panel to the shell. This Be sure this washer is replaced and under the same screw. between the sheII and grounded rear washer insures continuity panel.
-5-
Lift
the
rear
panel
up only
clear
of
T.F.26-23
the drum and f a n ( F i g . 4 l
Rear Panel I
I
Mulciple ConnecEor
FIG. 4
Reach in
and seParate
The rear
panel
the
wiring
harness
aE the
multiple
can now be renroved.
REC€PTACL€ HOUSING
TA8 ITOUSING
MULTIPLE CONNECTOR FIG.5
connector.
-6-
1.
T.F.
Ground StraP It bleeds off any The Ground strap is located in the rear duct. If the spring tension is gone or charge in the drum. static the blade is worn, replace the ground strap using blind rivets. grease coat of specified silicone Lr:bricate the strap with a light prior to re-assenbly.
2.
Attachment
Cord
connector will have to If the cord must be replaced, the multiple be removed and the ground wire disconnected frorn inside of the rear panel. connector and if The cord wires lock into the multiple hazard. electrical an creating destroy the lock,
forced out,
connector, cut Therefore, when replacing wires in the multiple Use a nehr the terminals. to free the connector at every wire Push the replaced. good terminal crimp on any Use a connector. position. into lock terminal into the connector and it will 3.
Felt
Heat Seal
The seal is held by an Grasp at any point and work seal off. Wtren replacing seal, adhesive around the entire mounting surface. clean off all old adhesive and then attach new seal with 3M-1300. 4.
Therrnostat This section covers both the control thermostat located in the thermostat located on top of the heat fan housing and hi-limit shroud. thermostat is rated The hi-Iimit is rated at 1250. The rating is indentification.
at 2000. The cycling thermostat stanped on the thermostat for
of the cycling thermostat will open with the failure ftre hi-Iimit clog' a lint as such flow of air thermostat or any interruption the controls thermostat lltre cycling broken fan or worn felt seals. drying temperature in the drun. Testing tested The thermostats cannot be electrically running. If the heat cycle will not operate' taken with an ohm meter across the terminals.
with the unit a test can be A complete
26-23
-7-
T.F. 26-23
tends to indicate electrically. circuit a good thermostat attaching Hovtever, after ohm meter leads to the thermostat terminals, the terminaLs should be moved to check for interis mittent of the thermostat contact. If the condition questionable, after testing, it should be replaced. In addition may have to
to a continuity be checked.
temperature
the operating
test,
in the A temperature test can be made i.lith a stem thermometer in the rear exhaust lower plug hole or an oven thermometer will duct. The temperature vary from l5Oo to ltOo on cycles. This would verify the cycling thermostat. After the cycling therrostat thermostat be can checked in the cycling therrnstat.
the hi-linit is verified, the same method by jumping
is to run the Another test of the hi-Iimit therrnostat with the door open and the door switch depressed. If it is hi-Iimit thermostat cuts out the heat circuit, its purpose. serving Thermostats are subject to temperature a temperature test rnay be required to 5.
Molded
unit the
variance, therefore, verify normal operation.
Fan Housing
Secured by eight 5,/L6" hex head screws located on the outside of have to be removed the rear panel. NOTE: One hole plug will from the rear ducF6 make one screvt accessible. 6.
Drum Bearings and rear replacement of both front shroud and rear duct, respectively.
This section covers in the heat located NOTE: G-nges
Lubrication for drum bearings before re-installing it into
Clean
2.
with Clean flanges insure to they are
3.
Be sure
4.
Apply flange.
aII
existing
1.
inside
a thin
of coat
grease fine free
the
from
front
to
the
and rear
drum
drum flanges.
or sandpaper grade (250-400) emery cloth wipe clean. then matter, of foreign
drum is of
is applied the unit.
drum bearings
clean.
Silicone
Grease
(GE G-34I-M)
to
each drum
-8-
To replace
T. F . 26-23'
bearings:
Remove the bearing(s)
2.
Remove all old adhesive and felt from the flange with non-flammable solvent. Be sure the flange surface is clean and drv.
3.
Use 3I"t#847 Adhesive flanges.
4.
Apply a thin coat of adhesive to of the bearing where it contacts
Rear: Install blocks dff,- tne inside edge. be used as a guide to motrnted flush.
to be replaced
to
attach
from the
flange.
I.
new bearing
the the
entire flange.
blocks
felt
to
a
the
surface
on flange of the rear panel, flush A 4" wide putty knife or metal lrlate assure that the bearing blocks are
can
Bearing Block
Bearing
Flange t Felt
SeaI
FTG. 6
Position one block in upper centre^of rear duct, and two (2') To blocks in lower half on centre, 45" off of bottom centre. (no adhesive) place one block determine this, on bottom centre, block. then mark the flange approximately l" from each end of this These marks are the position of the bottom edges of the two (2) lower blocks when installed.
-9-
T.F. 26-23
rnst.arr the new bearing and clarnp* securely Allow a minimum of 30 min,rrefE dry@ installing the drum. Do not. st@ eight (B) hours. NOTE:
in
the centre.
IDL BINDER CLIP* p3-2O-2O. is one suggested ores.
Front: Refer to preceding steps I-4, then: blocks to the flange of the heat shroud with front panel. Refer t.o Fig. 15.
c)-amp.
Install bearing edge against t.he
Posit,ion one (I) block in upper cent,re of heat shroud and three blocks; one in lower half; one centred over each shroud bolt; and one on bottom centre. (Adhesive setting time: see above). B.
BeIt l.
If off of the idler pulley. it can be re-positioned by removing the access panel rocated on the bottom of the unit. Viewing the dryer from the front, lay it on its reft side Remove tne uoGilnel and work t.hrough che (Fig. 7 shows bert position openingafter instarlation).
2.
ff broken, the rear panel wilt have to be removed. See Section Iv, A, for panel removal. Be sure idler spring is hooked into the shell near the access panel. To install: DrrJm a.
Place belt over drum with ribbed portion of belt next to drum, and hold belt taut.
tdler b.
c.
RoIler
Place belt over motor pulley white stitl holding taut to keep it on the drumLift the idler roller up past the belt, putting tension on the spring, and place the belt over the roller and release the roller slowly so that tension will be maintained on the beIt. (See rig. 71. This is the position of the belt and idler after assembly.
PuIley
Belc Idler gring er Sp
Outer
Shell FIG.7
-10-
T.F. 26-23
Drum Remove the rear panel out from the shelI. I.
and drive
belt,
then lift
the drum straiqht
Guard Assembly
Filter
guard, inside the drum, rear centre, The filter is removed by grasping in the finger holes provided and pulling straight NOTE: A bead around that portion out. of the fiLter guard which ?iE into the drum and four (4) dimples in the rear portion of the drum keep the guard from falling out. When installing, the guard should snap into place with a positive click.
2.
Lint
Filter
The filter itself is inside the filEer guard. With the guard in one hand, screen mesh portion filter facing you, notice a "handle" on the filter itself. Grasp handle and rotate filter so that it is adjacent to any one of four (4) pull securing Eabs of the filter guard. the ',handIe,, away from the tab and straight out. place To replace, filter in guard and push into place around the entire 3600 "cricks" circumference or until the filter past arl four tabs.
FTG. 8
D.
Outer
Shell
The shell
Assembly
assembly
includes:
(f) Motor Assembly, (2) Idler (41 Clips which secure wiring, The rear panel must be removed the boEtom access panel
(3) Bottom Access panel, Assenbly, and (5) wheels. to
service
all
but
the
wheels
and
-11-
l.
T.F.26-23
Motor Assembly It. is not necessary to remove t.he motor assembly General: to change, t,ighten, or re-position blower fan or drive pulley. The motor is equipped with a thermar-overload procector that wirl shut off the motor if it gets too hot. The overroad will reset when the motor cools sufficienely. Therefore, before replacins a rptor, check to see if it is not, brocked reducing air flow, thus causing overheating. by lint, 'NOTE:
The nptor should be vacuumed free of all lint EGe the rear panel is renpved, for whatever reason.
any
Ttre heating circuit is inoperative unress the sptor is running. This is controlled by the external switch rrcunted on the mtor. rtre switch has a back contact operated by urotor current and acts as a safety device.
FIG. 9 Replacement - Assenrbly complete Disconnect
the wiring
harness from the switch.
Rercve.the. 3,/8" bolt securing the nrornting bracket to the shell. slide motor assembry for*rard and out as it is herd in the shell by a tab on the opposite end of the moturting bracket. NCIE: The pad under tshe mounting bracket is to danpen rctor to shell vibration and should be in place when replacing motor.
-r2-
a.
T.F. 26-23
a pair of vice grips Blower Fan - Remove fan b y a t t a c h i n g t h e motor e n d o f shaft and turn the fan to the PuIleY T h e f a n h o u s i n g thread. has a right-hand councer-clockwise.
b.
Drive Putley - Remove l,/8" set screw, which is to remove, heat applied If difficult Loctite. of the set screw helps to loosen the loctite. or set screw is used. be added if new pulley
c.
Fan Housing gqeling. Plate by four 3,/8" nuts.
d.
e.
- Secured
CIamP
t'lotor Mounting ClamPs - with a large APPIY blade screw driver, straight pressure down and PrY out to free the clamp from the mounting bracket. Motor
Switch
- External
secured by to the area toctite should
d\
- Available
ffi
Testing a.
in the The notor can be tested removed. with harness wiring
b.
jumPer cord to Connect a test 4 arld 5 of the motor terminals switch (riS. I1).
c.
should be 140 A wattage reading - no load. watts at 120 volts (200 watts with empty drum load)
d.
for test tilith motor running, between I and 5 or voltage This will between 1 and 4. test the back contact If this contact switch. does not close with motor the heat circuit running, will not operate.
e.
ttouncing Bracket
shell
FIG. TO rrcroR sYvrtcH Erci
I'AO
o€t3 o @ o
To bypass switch, connect one cord to orange leg or test leg motor lead wire and other of test cord to blue and black rptor leads.
*'
wra
\aiofr
a(uc rctot
t
rctoi
oi0cc
rIG.
II
tcao
taao
-13-
2.
Assembly -
Idler
T.F. 26-23
(Refer to Fig.
7)
Release the split ring which holds the idler arm to the bott.om of the sherr. This is a friction fit and the arm has no groove. Ring can be released with speciar "tru-arm" priers or the arm can simpry be pushed, from its srot, towards the front panerReLease the the shell.
E.
idler
Remove split idler arm.
RoIIer off of
b.
Spring rol Ier. Panel
from its
-
a.
Front
spring
ring
Remove roller
groove in
the bottom of
and washer,
and additional
then slip
split
ring
roller
behind
Assembly
components of the front panel incruding door, door switch, timer, heat shroud and door latch can be changed without removing entire panel. front The main purpose for removing the front panel would be for damage to the paner itself or the sherl to which it is attached.
Ttmer
Tiner
--rn
\../
o II I
Door Switch
t""1.
t\
But ton G a s k et
Door C a
Front Side
View
FTG. L2
I
Vies
-I4-
T.F.
t.
Door Assembly - @en the door stightly off of its hinges. up and straight
2.
Door Gasket - Held with gasket.
3.
Tiurer a.
return
tabs.
past half-qrayr
Lift
26-23
then lift
tab and remove door
General The timer controls the drying time. The brown area of the dial is heat, except for the last 7 minutes of the cycle. The orange area of the dial is air only.
b.
Testing (1) (2) (3)
The timer can be tested in the unit. Disconnect harness wiring to the timer. Turn timer dial past 60 minutes. Circuit should be complete between OR - BK - BU. (.41 Turn timer dial back to cool-dolrn period (last 7 minutes). A click in the timer is audible. Circuit should be conplete bethreen OR - BK and open between OR - BU. (5) Turn timer dial into orange area. Circuit should be complete between OR - BK, and open between OR - BU. c.
Replacement (f) (21 (3) (4)
4.
Pull timer knob off. Remove two screws securing panel. timer to front Turn nehr timer so that the cam is located in the shortest arc between two audible clicks. Install timer with flat of shaft in the three o'clock position.
Door Switch_as:enb_ly.
Rernovethe wires from the switch itself, then remove the mounting screhrs from the front, inside the door opening. The switch @crevrs
itself
The switch
can be tested
can be removed from the bracket
in the unit
with
a voM.
by removing
\-
-15-
T.F. 26-23
Door Swlcch
DOORSI.TITCH ASSEMBLY FIG. 13
5.
Reset Bushing-Button-Spring If the bushing is or has to be removed, it should be replaced with a ne'i, one. Install by pushing in the opening in the front. panel. Bushing
iJuLCon
Sprin g
RESET BUTTON-BUSHING-SPRING FIG.
L4
To reprace button or spring only, push old buttons and spring out from inside the sherl, then insert, new components in the bushing from the' front.
6.
Heat Shroud Assembly Renove the brue wire from the safety thermostat and the wire from its attachment at the heating element. Remove the four rounting bolts and nuts. panel around the outer edge of the front are inside heat shroud.
orange
Bolts are located drum opening; nuts
on
-16-
T.F.
26-23
clip & insulacor
safety thermostat
t sh roud
felt
seal
p o r c e 1a i n insu Ia Cors
flange heat ing element
ar oc
II
II shroud assembly FIG.
a.
Thermostat
Safety
Remove wires and two procedure. testing h
c.
15
Felt
Heat Seal
Ref.
A,
Heating
(2) mounting
screws.
Ref.
A,
#4 for
fl3. Element
by disconnecting The element can be replaced out through and sliding from the terminals
the old element (Figthe insulators
to length and must be evenly The new element is not stretched After the o1d element is stretched taut around the shroud. by puJ-ling the new element to the same length removed, stretch on both ends. Slide
the
new element
in
through
the
insulators.
f5).
-17-
T.F.26-23
heat shroud must be are then snapped out used.
are broken, the If the insulators retainers The insulator removed. of the shroud and a new insulator
is located on the The male element terminal- insulator s h r o u d . T h e element must not h e a t t h e o f element side parts any space which could have or touch any metal d u e t o v i b r a t i o n . s h o r t cause a 7.
Door Catch
Reltpve heat shroud, depress molded ears and push out through the opening in the front panel. InstaII new catch by pushing "clicks" into the opening until it into p l a c e .
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EI,ECTRIC WIRING
Frc. 15
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cYcttio txciroalar rxtiroar^l cfero0l tcivlc:
I
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-18-
V.
T.F. 26-23
TROUBLE SHOO{TING section
This
a guide
is
possible
outlining
failures
and their
causes.
GENERAL procedure is suggested as a good service practice The following and prevention fF THE DRYER IS DISASSEMBLED FOR ANY REASON: maintenance
A.
I.
Unplug the
unit.
2.
Remove the
rear
3.
grease Clean all existing they are to be replaced.
4.
Clean
5.
Replace
6.
Clean
7.
Clean drum flanges lightly sand-paper or emery cloth
with fine grade and wipe clean.
8.
Be sure
drum is
9.
Apply front
the
panel,
from
lubricant
the
all
felt
heat
inside
of
the
seals,
the
belt
and drum.
from block
ground front
from the
lubricant
the
drive
drum bearings
strap. and rear.
drum flanges,
10.
Vaculm the inside re-assembling.
of
I1.
With
re-assemble
L2.
Run the unit to be sure the customer is ever possible) before leaving.
clean
hands,
unit,
including
the
front
and rear.
(250-4o0)
clean.
grease to a thin coat of silicone g r o u n d strap. and rear, and the the
unless
the
drum flanges,
motor,
before
unit.
satisfied
(when-
l.totor Does Not Run t.
No power
2.
Blown Fuse/Tripped Breajeration
Fan
Compact Dryer is an excellent companion to Hoover IUin-Tub Washer or similar type. Other types may leave 501 to 60t more lrater in the clothes than these, making drying time considerably Ionger. Customer may be expecting entirely too much from a lI0if volt compact, especially results of a 22O-volt fullsized dryer such as at laundromats has been experienced. The wattage output of the heating elenent is closely related to the supplied voltage. Check motor to be sure it completely free of lint. if necessary.
D.
Eratic
Thermostats
Ref. Section Iv, testing.
1.
Broken or Displaced Belt
Ref.
2.
Loose Motor Pulley
Add Ioctite
Section
IV,
does will
A, *4 for
Drum Does Not Rotate
Drive
is vacuun
flush with the end Re-position add Loctite of the motor shaft, and re-tighten. condition NOTE: If this not exist, the complaint probably ber "Noisy".
I1.
26-23
This unit is not designed to handle a large load such as washed in a full-sized automatic washer.
Too Large
4.
Blower
T.F.
B
and re-tighten.
-2L-
E.
3.
Frozen
4.
Drum Binding
Idler
T.F.
26-23
Roller for both Check Drum Bearings wear and adequate lubrication. worn Replace and lubricate Ref. Section IV, bearings. A, *6.
Noisy Dryer 1.
Worn Drum Bearings
Ref. Section Iv, replacement.
A, #6 for
2.
Bearings Dry
Clean, then re-Iube GE G-34I-M Silicone
3.
Loose Blower Fan
Re-position flush with end of the rnotor shaft, add Loctite, and re-tighten.
4.
Binding Roller
5.
Flat
5.
Distorted Front or Rear Panel
(See Note*)
7.
Loose or Worn Ground Strap
Rep1ace.
8.
Skewed Drum
(See Note*).
9.
Door Gasket
with Grease only.
or Dry Idler
This usually produces a regular thuq)ing sound.
on Drun Flange
If bearings show considerable wear, the drun may drop enough to rub the gasket, sometimes it. A squeaking displacing sound is usually produced when develops. this condition first soretines result This will motor to shell vibration.
10. No Damper Pad Under Motor Mount
front or drum or distorted NO|[E* A skewed (distorted) panel rear can usually be recognized by vibration Once and pulsating of the shell and/or panels. during each revolution, the panel would be pushed outward. DEPARTMENT 731A -
J.
CUNNINGHAM
in
