Koblenz/Thorne Electric U-40 User Manual

Page 4

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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 insur-
ance

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

r

emove 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

4

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