Koblenz-Thorne Electric U-40 User Manual

SERVICIO

SERVICE MANUAL

PARTS LIST

UPRIGHT VACUUM CLEANER

MODELS:

U-40

KOBLENZ ELECTRICA S. A. DE C. V. E-mail:

thorne_scsm@koblenz-electric.com

JUANARY-2010

LP-U40-201001

INDEX

I.- FINAL TEST FOR PRODUCT SAFETY 3

II.- REPLACEMENT PROCEDURES 3

III.- TROUBLE SHOOTING CHART 5

IV.- UPRIGHT VACUUM CLEANER EXTERNAL PARTS 6

V.- PARTS LIST UPRIGHT VACUUM CLEANER 7

VI.- UPRIGHT VACUUM CLEANER INTERNAL PARTS 8

VII.- PARTS LIST UPRIGTH VACUUM CLEANER 9

VIII.- WIRING DIAGRAM 11

I.-FINAL TEST FOR PRODUCT SAFETY

After repairs the product should be tested on its electrical function and electric strength as follows.

1.-ELECTRIC TEST

1. Set hi-pot test meter at 1500 Volts

2. Place the handles tube to “ON” position

3. Touch one probe of tester to one blade of power cord plug and touch other probe to handle tube,

there should be no breakdown.

2.-OPERATING TEST

Run the machine with the height adjustment knob on high and check:

1. There should be no unusual noise or vibration.

2. The carbon brushes spark should be small and uniform.

3. The current should not exceed 9.0 Amps. and 7.0 Amps

II. REPLACEMENT PROCEDURES

1.-TO REMOVE BAG (8), FIG. 1

1.1.-Release spring, from handle, slide off coupling unit.

2.-TO REMOVE HANDLE TUBE (2, 9) FIG.1 y FIG.2

2.1.-Disengage line cord from hook (5) pulling cord outward from retainer bottom

2.2.-Remove screws and nuts (15 and 7) on handle socket (24) and pull tube out.

3.-TO REPLACE BELT (25), FIG.2

3.1.-To avoid damage on the cover place the upright upward wheels in a soft surface.

3.2.-Remove retaining bar (22) by pressing down on right side (Longest), remove brush rollers cover (23) and assembly turbine cover (43).

3.3.-Stretch and twist belt over motor pulley to pull it out. (if not broken)

3.4.-Remove complete brush roller (21) with bearing supports (21B and 21E) pulling it out near the bearings.

3.5.- Place new belt on roller, replace roller on chassis making sure the mark "top" on bearings support faces towards the brush roller cover and reassemble.

4.-TO REPLACE BRUSH ROLL ( 21 ) OR BEARING SUPPORTS FIG. 2.

4.1.-Follow steps 3.1 to 3.4.

4.2.-Remove bearing support (21-B), pulling away from them brush roller (old or new).

4.3.-Place bearing supports on new brush roll, place belt over roll and replace to on chassis following steps

3.5.

5.-TO REPLACE REAR WHEELS (5), FIG.2

5.1.-Remove cover (step 7)

5.2.-Pull security (6) from axle (41) and axle assembly take out.

5.3.-The wheels new replace on the axle.

5.4.-Replace Cover

6.-TO REPLACE FRONT WHEELS (14-I), FIG. 3, 4

6.1.-Remove cover (step 7)

6.2.-Remove screws (7) from axle supports (13) and axle assembly take out.

6.3.-Remove axle with wheels

6.4.-The wheels new replace on the axle.

6.5.-Axle assembly replace on chassis.

6.6.-Replace Cover

7.-TO REMOVE THE COVER (2), FIG. 1 AND FIG.2

7.1.-Remove the bag (8) (Fig. 1)

7.2.-Depress handle release pedal (39) and put on horizontal position the handle tube

7.3.-Remove the screw (14) and adjustment knob (1) (Fig.2)

7.4.-To avoid damage on the cover place the upright upward wheels in a soft surface, remove the insurance

8.-TO REPLACE MOTOR (51), FIG 2.

8.1.-Remove belts follow steps 3.1 to 3.3.

8.2.-Remove cover (step 7).

8.3.-Remove four screws (4) holding the motor and disconnect it.

8.4.-Replace the motor (51) .

9.-TO REPLACE HEIGHT ADJUSTMENT CAM (I5), FIG.2

9.1.-Depress handle release pedal (39) and put on horizontal position the handle tube..

9.2.-Remove the screw (14) and the adjustment knob (1)

9.3.-Remove the spring and screw (44), to remove the retain cam plate.

10.-TO REPLACE HANDLE RELEASE PEDAL (39) FIG. 2

10.1.-Remove cover (step 7)

10.2.-Remove spring (40) from chassis

10.3.-Pull pedal towards spring side and remove

11.-TO REPLACE YOKE ASSEMBLY (24), FIG.2

11.1.-Remove cover (step 7)

11.2.-Remove handle release pedal (step 10)

11.3.-Remove the bolt yoke (31), along with the security locks (20)

12.-TO REPLACE THE CABLE ASSEMBLY (25), FIG. 2

12.1.-Remove cover (step 7)

12.2.-Remove Heyco strain relief (26) from chassis with Heyco

12.3.-Reassemble with the Hey co pliers making sure to locate the strain relief as it was before.

13.-TO REPLACE THE ON - OFF SWITCH (48), FIG. 2

13.1.-Remove cover (step 7)

13.2.-Disconnect the electrical terminal from the switch.

13.3.-Press the side tabs on the switch and pull it out.

13.4.-Press the new switch on the opening until the tabs snaps and reconnects the terminal.

14.-TO REPLACE THE SWITCH ACTUATOR (50), FIG.2

14.1.-Remove cover (step 7)

14.2.-Of the actuator assembly remove the yoke (24).

14.3.-Replace the new actuator and assembly.

15.-MOTOR SERVICING,

The only possible motor repairs are: Replace carbon brushes, replace armature, replace field.

Never try to repair the field or armature, if defective , replace with a new one .

WHEN ORDERING, DO NOT FORGET TO SPECIFY:

 PART NUMBER  DESCRIPTION  MODEL NUMBER

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