For technical questions, please call 1-800-444-3353. Page 4SKU 40211
Warning: The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be under-
stood by the operator that common sense and caution are factors which cannot be
built into this product, but must be supplied by the operator.
Unpacking
When unpacking, check to make sure the parts listed on page 9 are included. If any parts
are missing or broken, please call Harbor Freight Tools at the number on the cover of this
manual as soon as possible.
For best service you should incorporate an oiler, regulator, and inline filter, as shown in the
diagram above. Hoses, couplers, oilers, regulators, and filters are all available at Harbor
Freight Tools.
Note: You will need to prepare valves and couplers (not included) from the compressor to the
Air Dryer (1/2” Steel Pipe-14 NPT) and from the Air Dryer (1/2” Steel Pipe-14 NPT) to the tool.
Use pipe thread seal tape or pipe dope in all of the connections. If you are not using an
automatic oiler system, before operation, add a few drops of Pneumatic Tool Oil to the airline
connection. Add a few drops more after each hour of continual use. Check the air connection
for leaks before use.
Installation
1. Install the Air Dryer at least 2 feet from the wall on all four sides. This will give the unit
proper ventilation and allow space for maintenance and repair.
2. Make sure the floor is level.
3. Do not expose the unit to rain or any moisture.
4. Install the unit out of direct sunlight and away from any heat sources. Otherwise, the
cooling function of the unit will continually run, eventually overheating the Air Dryer.
5. Position a small bucket to capture foul water from the drain hose at the bottom of the
unit. Condensation water can be piped to a floor drain, if available; be sure to follow
local plumbing codes.
Note: Electrical installation and installation of a recommended bypass valve (not included)
are covered on page 5.
Compressor
Air
Dryer
Tool