Erbauer ERN634ATL, Handbook, Page: 13 / 16

1/2" AIR RATCHET WRENCH
1. Flush the tool with air-tool oil or gum
solvent.
2. Lubricate the tool.
3. a. Adjust the regulator on the tool to
maximum setting.
b. Adjust the compressor regulator to tool
maximum of 90 PSI/6.3 BAR.
4. Tighten and seal hose fittings if leaks are
found. Use sealing tape.
5. a. Be sure the hose is the proper size.
Long hose or tools using large volumes
of air may require a hose with an I.D. of
1/2 in. or larger depending on the total
length of the hoses.
b. Do not use a multiple number of hoses
connected together with quick-connect
fittings. This causes additional pressure
drops and reduces the tool power.
Directly connect the hoses together.
6. Replace rotor blade.
7. Water in tank; drain tank. (See air
compressor manual). Oil tool and run
until no water is evident. Oil tool again
and run 1-2 seconds.
Tool runs
slowly or will
not operate
1. Grit or gum in tool.
2. No oil in tool.
3. Low air pressure.
4. Air hose leaks.
5. Pressure drops.
6. Worn rotor blade.
7. Moisture blowing
out of tool exhaust.
PROBLEM
TROUBLESHOOTING
CORRECTIVE ACTION POSSIBLE CAUSE
CARE AND MAINTENANCE
An in-line oiler is recommended to be installed on air supply line as it increases tool
life and keeps the tool in sustained operation. The in-line oiler should be regularly
checked and filled with air-tool oil. Proper adjustment of the in-line oiler is performed
by placing a sheet of paper next to the tool's exhaust ports and holding the throttle
open approximately 30 seconds. The in-line oiler is properly set when a light stain of
oil collects on the paper. Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for an extended period of
time, it should receive a generous amount of lubrication at that time. The tool should
be run for approximately 30 seconds to ensure oil has been evenly distributed
throughout the tool. The tool should be stored in a clean and dry environment.
Recommended lubricants: use air-tool oil or any other high-grade turbine oil
containing moisture absorbent, rust inhibitors, metal wetting agents and an EP
(extreme pressure) additive.
Clean the tool all over with a cotton rag after each use. Keep the tool in a dry and
safe place out of reach of children.