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Your purchase of a SHERMAN TANK COMPRESSOR air tank is a perfect choice to power your high-pressure air horns, 
tools and accessories. The Wolo name, with more than fifty years of experience, is your guarantee of a superior horn 
product. If you need help installing this product, our technicians are available to answer your questions, Monday through 
Friday from 9 AM to 4 PM EST by calling 1-888-550-HORN (4676).

TANK INSTALLATION Fig. 1

1.  Use the tank’s mounting bracket as a template; mark the hole 

locations and drill to size 15/64”. Secure tank with hardware provided. 
Fig. 1.

HOSE INSTALLATION Fig. 2 & 3

2.  Using the high-pressure plastic hose provided, cut to size to be able to 

connect the tank to inlet fitting of the accessory or valve requiring  
high-pressure air. Place the brass nut from the tank’s outlet fitting onto 
the high-pressure plastic hose. Push the plastic hose fully onto the 
outlet fitting; tighten the brass nut onto the outlet fitting. 

CAUTION: Do 

not over tighten the brass nut. 

3.  The other end of the plastic hose is connected to the accessory or 

valve requiring high-pressure air.

WIRING COMPRESSOR Fig. 4 

4.  The compressor’s red wire is connected to a (+) 12-volt power source, 

using the fuse provided. 

IMPORTANT! The fuse must be connected 

directly to the power source. 

IMPORTANT! The red fused wire must 

be connected to a (+) 12-volt power source controlled by the vehicle’s 
ignition switch. This will protect your compressor from running 
continuously and being damaged if an air leak develops when the 
vehicle is not in operation. Suggested connection points are: blower 
motor, windshield wiper motor or the accessory terminal on the fuse 
panel. Make sure the connection point has a wire that is as heavy 
as the compressor’s wires and the connection point is capable of 
handling 20-amps. 

CAUTION: remove the fuse from the fuse holder 

until installation is complete. 

5.  OPTIONAL: A switch can be installed into the compressor’s red wire. 

This will permit the driver to turn-off the system if it is not required.  
See Fig. 4.

Installation Instructions for

SHERMAN TANK AIR COMPRESSOR

 Model 830

Use the tank’s 

mounting base as a 

template to mark the 

15/64” holes for drilling

Fig. 1

Pressure 

Switch

Pressure 

Gauge

Schrader Valve-  

to connect to 

20’ coiled hose

High-pressure 

tank outlet

Compressor

High-pressure plastic hose connected

Fig. 3

Connecting the high-pressure plastic hose

Fig. 2

Turn brass nut 

clockwise

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