Harbor Freight Tools 93821 - Manual (Page 6)

Recommended Compressed Air System Set-Up:
1. For best service, you should incorporate an oiler, regulator, and inline filter when
using an air compressor (not included) to operate the Ratchet Wrench.
(See Figure B.)
SKU 93821 For technical questions, please call 1-800-444-3353 PAGE 6
FIGURE B
RECOMMENDED COMPRESSED AIR SYSTEM SET-UP
ATTACH
QUICK CONNECTOR
TO RATCHET WRENCH
To Operate The Ratchet Wrench:
2. After installing a socket onto the Drive Head of the Ratchet Wrench, set the
Forward/Reverse Knob (33) to the direction in which you wish the Ratchet to
turn (Forward = clockwise rotation / Reverse = counterclockwise rotation).
(See Figure C.)
3. Connect the air supply hose to the Ratchet Wrench. Turn on the air compressor,
and set its regulator to the recommended 90 PSI for the Ratchet Wrench.
4. Insert the socket onto the bolt or nut that is to be loosened/tightened.
5. Make sure to hold the Ratchet Wrench firmly with both hands, as torque will
cause the tool to twist. Then gently squeeze the Throttle Lever (11) to tighten
or loosen the bolt/nut. Apply additional pressure on the Throttle Lever (11) as
needed. (See Figure C.)
1. The Ratchet Wrench is designed to work with all 1/4” drive sockets (not
included). Before installing a socket, make sure your hand is away from the
Throttle Lever (11). When installing a socket onto the Drive Head of
the Ratchet Wrench, always make sure the socket is firmly secured
in the Drive Head.
(See Figure C, next page.)