Lokar Electric Kickdown Kit TH400 User Manual

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INS0004 Rev. 05/08/14

Page 2

Step 7: The tear drop (not included, part of the Carburetor Bracket

& Spring Kit) will be attached to the carburetor throttle arm

by the hex carb fitting. Separate the hex carb fitting from

the kickdown throttle body fitting. Install the hex carb fitting

and the tear drop onto the carburetor throttle arm as shown

Fig. 6. Hook the return springs (not included, part of the

Carburetor Bracket & Spring kit) to the tear drop. Snug the

hex nut down, and then back it off just far enough that the

tear drop can rotate freely.

Step 8: Separate the aluminum switch box from the mounting bracket

by removing the two 1/4"-28 x 3/8" button head bolts.

Step 9: Make sure the spring is still in place on the inner wire, and

re-install the inner wire into the kickdown cable housing.

Position the slide trigger back into its slot in the aluminum

switch box.

Step 10: Feed the wires (not included) through the rubber grommet

into the aluminum switch box, and install the two small wire

terminals onto the ends of the wires. Connect both of the

wires to the switch terminals. It does not matter which wire

is connected to which terminal.

Step 11: Reinstall the back cover onto the aluminum switch box,

using the #10-32 x 1/2" button head bolts and lock washers

you removed earlier. Then reinstall the aluminum switch box

onto the mounting bracket, using the 1/4"-28 x 3/8" button

head bolts and lock washers you removed earlier.

Step 12: Connect one of the wires from the aluminum switch box to a

switched power source with a 5 amp or greater fuse. Install

the remaining large wire terminal onto the end of the other

wire, and connect it to the vertical terminal on the detent

solenoid on the transmission.

Fig. 7

NOTE: The detent solenoid may have either one or two terminals.

Step 13: Before connecting the inner wire to the carburetor, make

sure that the throttle linkage is properly adjusted. Verify at

the carburetor that the throttle is wide open while you have

a helper hold the accelerator pedal to the floor. Once you

are sure that the throttle linkage is adjusted correctly, slide

the kickdown throttle body fitting onto the kickdown cable

inner wire, and connect the kickdown throttle body fitting to

the hex carb fitting.

Step 14: This step will also be much easier with a helper. Slide the

kickdown cable end stop onto the inner wire. Move the

throttle to wide open and hold it there while pulling the

kickdown inner wire as tight as possible. Slide the cable

end stop up against the kickdown throttle body fitting

and tighten the set screw using the supplied 5/64" Allen

wrench. Release the throttle.

When the kickdown cable is properly adjusted you should be

able to open the throttle to the wide open position without

interference from the kickdown cable; and with the throttle

wide open, you should not have any slack in the kickdown

cable. Minor adjustments can be made using the kickdown

cable adjuster on the carburetor bracket.

Double check to be sure that all carburetor, throttle and

kickdown linkage operates freely without binding and that

the throttle returns to the closed position when the pedal

is released, then test drive. Once the kickdown cable is

correctly adjusted and operating properly you can cut off the

excess inner wire, leaving about 1/2" extending beyond

the cable end stop to allow for future adjustment if needed.

TH400 Electric Kickdown Kit Installation Instructions

Carburetor Bracket

(not included)

Adjuster Nuts

(not included)

Throttle Cable

Adjuster

(not included)

Kickdown

Mounting

Bracket

Adjuster Nuts

Kickdown

Cable

Adjuster

#8-32 x 1/2"

Button head Bolt

with Nylock Nut

5/16"-18 x 1-1/4" Hex Head

Bolts with Flat Washers

and 1/4" Spacers

(Mounting

Bracket to Transmission)

Detent

Solenoid

Large Wire

Terminal

1/4"-28 x 3/8" Button Head Bolts and Lock

Washers

(Mounting Bracket To Aluminum Switch Box)

Fig. 5

Fig. 6

Fig. 7

Kickdown Kit shown installed with Lokar Throttle Cable

(not included)

and Lokar Carburetor Bracket and Springs

(not included)

Kickdown

Cable

Housing

Kickdown

Cable

Adjuster

Throttle

Cable

Housing

Ferrule

Throttle Cable

Adjuster

Carburetor Bracket

Carburetor Base

Carburetor

Throttle Arm

Kickdown

Mounting

Bracket

Tear Drop

Cable End Stop

Kickdown

Throttle Body

Fitting

Hex Carb

Fitting

Carb End

Fig. 4

(Shown with wiring

already installed)

Side View of

Trans Terminal

Trans

Terminal

Key On 12 Volt Power

Back View of Switch Box

Wrong

Terminal

Right Terminal