Maintenance - Central Pneumatic 56101 Owner's Manual & Safety Instructions

Maintenance

WARNING
TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:
Turn the Power Switch of the equipment to its "OFF" position, release tank air pressure, wait for the engine to
cool, and disconnect the spark plug cap before performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY FROM EQUIPMENT FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or excess
smoking occurs, have the problem corrected before further use.
Follow all service instructions in this manual. The engine may fail critically if not serviced properly.
Many maintenance procedures, including any not detailed in this manual, will need to be performed by a
qualified technician for safety. If you have any doubts about your ability to safely service the equipment
or engine, have a qualified technician service the equipment instead.
Compressor Pump Oil Maintenance
Check oil periodically for clarity. Replace oil if it appears milky or if debris is present, or every
6 months, or 100 hours of runtime, whichever comes first. In harsh environments such as
high heat or high humidity, you will need to replace the oil more frequently.
Change the compressor oil after the first hour of use to remove any debris.
Adding Oil
Oil Sight Glass (19)
1. The oil level should be at the center of the "full" level
on the Oil Sight Glass, as shown above. Add oil as
needed to maintain this level. Do not let the oil level
go below the center dot (LOW as shown above) and
do not overfill the oil so that it is above the center dot
(OVERFILL as shown above) on the Oil Sight Glass.
2. To add oil:
a. Remove the Oil Plug (17).
b. Using a funnel to avoid spills, pour enough
oil into the pump Crankcase to reach
the "full" level in the Oil Sight Glass.
c. Replace the Oil Plug.
Item 56101
Crankcase (16)
OIL LEVEL
OVERFILL
FULL
LOW
For technical questions, please call 1-800-444-3353.
Cold Weather Operation
Premium quality 30-weight, non-detergent air compressor
oil (sold separately) is recommended for use with this
compressor. Start compressor in heated area if outdoor
temperatures drop below 32° F. If this is not practical, drain
out the old pump oil and use SAE 10W Non-detergent Air
Compressor Oil in the pump crankcase instead whenever
the compressor's temperature will fall below 40°. Do not
use multi-viscosity oil (such as 10W-30), they leave carbon
deposits on pump components and lead to accelerated
failure. Heavy operation may require heavier viscosity oil.
3. If uncertain which oil to use for this compressor,
please call Harbor Freight Tools customer
service at 1-800-444-3353 for assistance.
WARNING! To prevent serious injury from burns: Do not
add or change the oil while the compressor is in operation.
Allow the compressor to cool before replacing oil.
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