Wolo 846 User Manual

METHOD A. (Fig. C.) Is the recommended method for a roof mount installation using the flexible inlet hose

(provided), connecting to the horn’s air inlet located at bottom
base plate.

METHOD B.

(Fig. D) Using the air inlet located at the front
base. IMPORTANT: For method B you will need to install the
screw plug into the horn’s air inlet located at the bottom base
plate before the horn is secured to the vehicle.

1. Locate the desired area you wish to mount THE CHIEF air

horn. For best results, the front of the horn should be
unobstructed so that the horn’s sound can project straight
ahead. Use the horn’s gasket as a template, mark hole
locations and drill to size. See Fig. A.

IMPORTANT: For method B mounting: only drill the two-(2)
1/4” screw holes, (the 7/16’’ hole is not required).

2. Secure the horns to the vehicle using the hardware provided.

Tighten screws evenly to prevent damage to the horn. See Fig. A.

IMPORTANT: Be sure to use the rubber gasket to protect
against water leaks.

3. Position the front trumpet support bracket around the narrow

part of the trumpet. Push the bracket forward until it is tight.
Use the bracket as a template, mark hole locations and drill
to size. See Fig. B.

4. Secure the front trumpet to the vehicle using the hardware

provided. Tighten screws evenly to prevent damage to the
horn. See Fig. B.

IMPORTANT: Be sure to use the rubber gasket to protect
against water leaks.

INSTALLATION INSTRUCTIONS

For THE CHIEF - Model 846

Your choice of Wolo’s THE CHIEF Air Horn is the perfect choice to compliment any emergency vehicle
providing an extra level of powerful warning sound to clear the right-of-way. The Wolo name, is your
guarantee of a superior horn made with the finest material and precision workmanship to assure years of
dependable service. Our technicians are available to answer your questions, Monday through Friday from 8
AM to 4 PM EST at 1-888-550-HORN (4676).

AIR HORN INSTALLATION

Before installing THE CHIEF you will need to determine which of the two air inlets is the most suitable for your
installation. See below Method A or Method B.

Fig A

Rubber Gasket

NOTE: Center Hole Not

Used In Method B

1/4’’

6 mm

1/4’’

6 mm

Fig B

Rubber Gasket

Push
Forward

1/4’’

6 mm

CONNECTING TO AIR INLET

METHOD A – See Fig. C

5. Secure the flexible air hose provided, into the horn’s bottom

base plate air inlet. Do not remove the Teflon tape on the
threaded end of the brass fitting. The tape is used to help
prevent air leaks.

CAUTION: Avoid making any kinks or sharp bends in the
flexible inlet hose that might reduce the airflow to the horn,
such could alter the sound of the horn.

6. Connect the other end of the flexible inlet hose to the air valve

using 1/4” O.D., that will provide air from the tank of the on­board air system.

METHOD B – See Fig. D

7. The screw plug provided must be installed into the bottom base plate air inlet, so to block off that inlet.

8. Remove the chrome screw plug in the front base and install

the compression fitting provided. Do not remove the Teflon
tape on the threaded end of the compression fitting. The tape
is used to help prevent air leaks.

9. Connect the 1/4” O.D. hose to the horn’s compression fitting,

that will provide air from the tank of the on-board air system.
The other end of the hose is connected to the air valve
providing air from the tank of the on-board air system.

CAUTION: Avoid making any kinks or sharp bends in the hose
that might reduce the airflow to the horn, such could alter the
sound of the horn.

WARRANTY

Wolo Manufacturing Corporation (“Wolo”) warranties to the original purchaser, for three months from the date of
purchase, that this product is free from defects in workmanship and materials. If there is such a proven defect,
Wolo, at its option, will either repair or replace the item free of charge, if it is returned to Wolo within three months
from the date of purchase together with proof of purchase as described below. Wolo reserves the right to inspect
any defect prior to settling any warranty claim by repair or replacement. This warranty is limited as above provided
and Wolo will not be responsible for fire or other casualty or accident, due to neglect, abuse, abnormal use,
modifications, faulty installation of this product, or natural causes.

ANY EXPRESSED WARRANTY NOT PROVIDED HEREIN IS EXCLUDED AND DISCLAIMED. THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY
LIMITED TO A TERM OF THREE (3) MONTHS. UNDER NO CIRCUMSTANCES SHALL WOLO BE LIABLE TO
PURCHASER OR ANY OTHER PERSON FOR ANY SPECIAL OR CONSEQUENTIAL DAMAGES, WHETHER ARISING
OUT OF BREACH OF WARRANTY OR OTHERWISE.

To obtain warranty service, return the product prepaid, and include the original bill of sale showing the date of purchase.
Provide with the return a brief description of the problem. Also, include with the return a check or money order in the
amount of $10.00 to cover return shipping. Mail to:

Wolo Manufacturing Corp. • One Saxwood Street, Deer Park, NY 11729

Attn: Warranty Service

E-mail: [e-mail]

© 2008 Wolo Mfg. Corp All Rights Reserved.

Method A

Fig C

Method B

Fig D

Remove
Chrome
Plug
From
Base

Screw
Plug Into
Air Outlet