Oreck DutchTech DTX 1100 User manual
Increase Quality Through Interaction with the Field
The Oreck Manufacturing Company
8144 Dutch Tech Tune-Up & Service Guide
10/08/2007
ompiled by Clark DeNoble
C
Increase Quality Through Interaction with the Field 1
Increase Quality Through Interaction with the Field
Table of Contents
Tune-up Pages 3-7
Wiring Diagrams
DTX1100/1200 Page 7
DTX1300/1400 Page 8
Troubleshooting DTX1300/1400 Electrical
Circuits Explained
Test Points & Troubleshooting Page 9-13
Disassembly Figures of DTX1300/1400 Pages 13-23
Cord Winder Replacement w/o Disconnecting Everything Page 24
Cord Winder Disassembly Pages 25
Tighten the Tension on the Cord Winder Page 26
Helpful Assembly Hints Page 27
Hose Handle Interior Page 28
EBK340 Power Nozzle Service Pages 28-34
EBD280/340 Motor Cog Removal Page 34
DTX1100/1200 Rear Cover Removal Pages 35-39
Increase Quality Through Interaction with the Field 2
Increase Quality Through Interaction with the Field
Tune-Up DTX1300/1400
1. Functional Checks (Attach Hose and all other Powered Accessories)
a. Cord Winder
b. Hose Switch Main Motor only On-position Left
c. Main Power Switch On/Off
d. Leave Main Power Switch On
e. Main Motor Suction
f. Motor Watts Control Function-250 to 1300/1400
Increase Quality Through Interaction with the Field 3
Increase Quality Through Interaction with the Field
g. DTX 1300-Park Switch On/Off -normally On, push in to turn unit Off
h. Hose Switch Off-position Center
i. Hose Switch Main Motor and Power Nozzle On-position Right
j. Power Nozzle Brush Roll
k. Remove Hose Assembly
Increase Quality Through Interaction with the Field 4
Increase Quality Through Interaction with the Field
l. Rotate Swivel forwards and backwards several times. Should be
smooth without snaps and clicks.
m. Front Wheel and Swivel
n. Rear Wheels
o. Accessory Cover
p. Repair and/or replace parts as needed
Increase Quality Through Interaction with the Field 5
Increase Quality Through Interaction with the Field
2. Clean and Inspect
a. Power Cord
b. Remove
i. Inner Filter Bag
ii. Dust Chamber Filter
iii. Exhaust Filter
c. Dust Chamber Filter & Holder
d. Canister Externals
e. Hose Assembly
f. Wand/Power Nozzle Assembly
g. Brushroll
h. Accessories
Increase Quality Through Interaction with the Field 6
Increase Quality Through Interaction with the Field
3. Replace
a. Inner Filter Bag
b. Dust Chamber Filter
c. Exhaust Filter
Investigative and Repair Methods
DTX1100/1200 Wiring Diagrams
Increase Quality Through Interaction with the Field 7
Increase Quality Through Interaction with the Field
B
N
H
N
L
C
A
1
2
3
4
5
DTX1300/1400 Wiring Diagrams
Important: To operate the main motor either the hose must
be connected or externally short C & L receptacle together
using a wire with blade terminals at both ends or cut off a
hose plug end, remove the conductor cover and connect L
& C together internally. Reassemble.
A B
N L C
C L N
Power Nozzle Receptacle Hose Receptacle Hose Plug
Increase Quality Through Interaction with the Field 8
Increase Quality Through Interaction with the Field
Main Motor Only Hose Handle Switch Toggled Left
Current flows from the AC receptacle through the hot blade of the power cord
plug. Cord winder interconnects, main power switch, then branches (Piggyback)
in one direction to apply power to the control board to operate it’s circuitry and
the other direction through a harness to the line or L position of the swivel, up the
hose to the handle assembly, through the switch, back down the hose to control
or C position of the swivel, through the harness , into the control board, then out
the control board and into the motor, out the motor back to the control board, out
the control board, branching to the neutral or N position of the swivel for use
when the power nozzle is activated, back through the cord winder, down the
neutral leg of the power cord and out the neutral blade of the power cord into the
AC receptacle.
Increase Quality Through Interaction with the Field 9
Increase Quality Through Interaction with the Field
Main Motor Plus Power Nozzle Handle Switch Toggled to the Right
Toggling the handle switch from left, past middle, to the right leaves the main
motor as described but applies AC voltage through the handle switch, receptacle,
harness and power nozzle motor. Then out the motor, down the hose, through
neutral or N position on the swivel and harness to the unit’s neutral.
When Nothing Works
Use a Multimeter in Ohms or a Continuity Tester to:
1. If the problem is intermittent you should consider performing steps 1 & 2
while flexing components (swivel, harness, power lead to power switch,
power switch, power lead to cord winder, cord winder contacts) to save
time.
2. Check the hot side between the hot blade of the power cord plug and the
L or center slot on the swivel. This checks the hot leg of the power cord,
cord winder, interconnecting leads, main power switch, more leads,
harness and swivel.
Increase Quality Through Interaction with the Field 10
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