Mod WAHTZ WAH K-985 Manual Download Page 8

8

Mount the L-bracket on the outer surface of the base 
using the two long 16 mm screws, nuts and flat washers 
as shown in the drawing.  The screws should be 
inserted from the inside of the base so that the screw 
heads are on the inside of the pedal.
Push the tension adjustment screw through the hole in 
the L-bracket.  Place the pillow block between the two 
bearing pin mounts.

Bearing Pin Mount

L-bracket

The non-threaded hole in the pillow block is slightly off center.  The 
side of the pillow block that the non-threaded hole is closest to should 
face up so that it lines up better with the two bearing pin mount holes.

0.15"

0.22"

This Side Up

Screw the tension adjustment screw part way into the 
threaded hole in the pillow block.

Slide the bearing pin through the two mounts and the 
pillow block as shown in the drawing.  Turn the 
tension adjustment screw with your fingers until its 
head is flush with the back of the L-bracket.  

Do NOT 

tighten this screw, yet.  

Slide the bearing pin out and 

set it aside.  The pillow block is now aligned for final 
assembly.

BASE 

OUTER 

SURFACE

Mount

Mount

Pillow

Block

Tension 

Adjustment Screw

SECTION 2 - Mounting Large Components to the Base

Please refer to DRAWING 1

Using #4 screws, nuts and lock washers, mount the four terminal strips as shown in Drawing 1.

Mount the input jack in the hole on the left side of the base (where indicated in the drawing).  
Make sure the two solder lugs are in the most upright position before tightening the nut.

Mount the output jack in the hole on the right side of the base (where indicated in the drawing).  
Make sure the two solder lugs are in the most upright position before tightening the nut.

Mount the DC power jack in the 15/32" hole just below the output jack.  Orient the lugs on the 
DC power jack so the larger center-pin lug is facing the output jack.  Tighten the DC power jack.

CENTER-PIN LUG

POSITIVE-SWITCH LUG

POSITIVE LUG

DC Power Jack

Summary of Contents for WAHTZ WAH K-985

Page 1: ...d the long life potentiometer manufactured specifically for use in wah pedals is included to provide years of smooth quiet operation Point to point construction allows advanced kit builders to easily...

Page 2: ...Allen Wrench to tighten the tension adjustment screw 12 mm Wrench to fasten the wah pot in its mounting bracket Contact Cement or other adhesive to secure the tread and pedal bumpers TABLE OF CONTENT...

Page 3: ...in 1 Rear Bumper 1 Front Bumpers 2 Bottom Cover 1 Wah Base 1 Treadle 1 Rubber Tread 1 Mounting Screws 2 M4 x 0 70 L 16 mm Rack Assembly Parts Rack 1 Small Screw 1 M3 x 0 5 L 12 mm Hex Nut 1 M3 x 0 5 S...

Page 4: ...H Terminal Strip with 8 Terminals P 0802H 2 Terminal Strip with 2 Terminals P 0201H 1 Terminal Strip with 5 Terminals P 0501H 1 DPDT Foot Switch P H498 1 Battery Clip S H155 1 4 Screws 3 8 long S HS44...

Page 5: ...k red gold 1K R A1D5K 1 1 5k Resistor W brown green red gold 1 5K R A10K 1 10k Resistor W brown black orange gold 10K R A22K 1 22k Resistor W red red orange gold 22K R A33K 1 33k Resistor W orange ora...

Page 6: ...e a good solder joint Take your time with each connection and make sure that all components are connected and will remain connected if your project is bumped or shaken Bend the component lead or wire...

Page 7: ...er holders at the toe end This will cushion the footswitch when turning the pedal on and off Front Bumper Holders Remove the backing from the rear bumper and mount it in the hole on top of the holder...

Page 8: ...w with your fingers until its head is flush with the back of the L bracket Do NOT tighten this screw yet Slide the bearing pin out and set it aside The pillow block is now aligned for final assembly B...

Page 9: ...f the adjustment screw with a 5 mm Allen wrench so that the treadle stays in place when you remove your foot and so that it suits your playing preference Base Assembly Looking at the inside surface of...

Page 10: ...terminal 4 to pot lug 3 Do NOT solder the pot connection yet 8 Strip and tin a 1 piece of wire and connect pot lug 3 to footswitch lug 6 Now solder the pot connection 9 Strip and tin a 4 piece of wir...

Page 11: ...f the wire and crimp it around the terminal with needle nose pliers 5 Connect the 33K resistor to terminals 20 and 21 6 Connect the 4 7 F cap and 100K resistor to terminals 19 and 21 Make sure the neg...

Page 12: ...the full counter clockwise position If you measure the electrical resistance between pot lugs 1 and 2 with an ohm meter at this setting you should be measuring the pot s minimum resistance i e close t...

Page 13: ...ay foam block Place the bottom cover over the base and attach the base using the feet and their mounting screws Fixing a Squeaky Wah If you find that your wah pedal is squeaking when you rock the trea...

Page 14: ...Output Jack Input Jack DRAWING 1 RING LUG TIP LUG DC Power Jack GROUND LUG TIP LUG GROUND LUG INSIDE VIEW OF THE BASE ENCLOSURE 14...

Page 15: ...ut Jack Input Jack DRAWING 2 RING LUG TIP LUG DC Power Jack GROUND LUG TIP LUG GROUND LUG INSIDE VIEW OF THE BASE ENCLOSURE 1 2 3 4 5 6 1 2 3 17 18 20 21 22 23 1 2 3 4 5 6 7 8 19 9 10 11 12 13 14 15 1...

Page 16: ...GROUND LUG TIP LUG GROUND LUG INSIDE VIEW OF THE BASE ENCLOSURE 1 2 3 4 5 6 1 2 3 17 18 20 21 22 23 1 2 3 4 5 7 8 19 9 10 11 12 14 15 16 22 33K 4 7 F35V 68K 103K 400V 1 5K 103K 400V 470K 470K 1K 10K...

Reviews: