Disassembly Procedure; Procedure To Change The Horn Rotor Belt; Procedure To Replace The Horn Driver; Removing The 15" Woofer Speaker - Hammond Leslie 3300 P Service Manual

3.DISASSEMBLY PROCEDURE

NOTE: Unplug the Power Cable fr om the unit befor e disassembling it.
1.Remove the Upper Rear Cover.
Remove the 4 tapping screws(type-1 truss, Ø4x16),then remove the Upper Rear Cover.
2.Remove the Middle Rear Panel.
Remove the 8 tapping screws(type-1 truss,Ø4x30),then remove the Middle Rear Panel.

3. Procedure to change the Horn Rotor Belt..

Locate a small Philips screwdriver (of maximum total length 8.5cm).Drop the Belt by tilting in
the Motor. Next remove the 2 small screws (bind M3x16 for fixing the Horn Rotor) and remove
the Horn from the Bearing.
Place the new Belt around the Bearing Ass'y and after mounting the Horn Rotor,
lift it onto the Motor Pulley and the Horn.
Motor Pulley

4. Procedure to replace the Horn Driver:

Pull out the "SP Spacer" (between the Horn Driver and the Woofer Speaker).
Remove the connecting leads from the horn driver.
Rotate the Driver Unit to the left and remove it from the Upper Horn Motor Ass'y.
Be careful not to pinch your fingers between the Woofer Magnet and the Horn Driver.
(as the magnetic pull from the woofer magnet is strong.)

5. Removing the 15" Woofer Speaker.

Remove the 8 screws W Sems (P=3 M4x30).
Place a thick piece of cardboard etc. between the Magnets of the Speaker and the
Horn Driver and avoid both Magnets from sticking together.
Fig. 3
SP Spacer
Fig. 4,5
Fig. 1,2
Bearing Ass'y
6. Remove the Motor Drive PWB.
Remove the Cover Bracket of the Motor Cover Ass'y by removing the 2 tapping screws (type-1 bind,
Ø3x10).
Slide and remove the PWB with the Connector from the Cover.
Keep track of the wiring for the UP Motor and the Low Motor.
(They are Similar in appearance but not interchangeable.)
7. Remove the PWH-74C.
First remove the wiring(s) from the PWB.
Next remove the 4 tapping screws (type-1 truss, Ø4x16);
(2 are horizontal on the top, 1 is on the bottom,
and another fixes the heat-sink bracket).
Fig. 7
Fig. 6
#3300P, #3300WP #3300P, #3300WP
3. DISASSEMBLY PROCEDURE
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#3300P
#3300WP