Sanborn Mfg P1682066.MN Operator And Parts Manual Download

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200-2966

MAINTENANCE

5. Shift the motor back to the point where the correct deflection exists

(see “Drive Belt Tension Adjustment”).

6.  Retighten the motor mounting bolts to 130-180 in.-lbs.
7.  Check to ensure that the tension remained correct.
8.  Reinstall the belt guard. All moving parts must be guarded.

TO REPLACE OR CLEAN CHECK VALVE

WARNING:

RISK OF INJURY. This unit starts

automatically. ALWAYS shut off the compressor, remove

the plug from the outlet, and bleed all pressure from the

system before servicing the compressor, and when the

compressor is not in use. Do not use the unit with the

shrouds or belt guard removed. Serious injury could occur

from contact with moving parts.

1. Turn air compressor off,

To pump

head

B E

remove the power cord from

the outlet or lock out the

power supply and relieve all

the air pressure from the tank

(refer to “Shutdown” in

Operating Instructions).

Make sure the compressor has

cooled down before servicing.

2. Using the appropriately sized

wrench, loosen the compression

nut (A) on the check valve (B).

Gently move the transfer tube

3. Remove the bleeder tube (D)

from the elbow (E ) located on

the side of the check valve by

gently pulling it off the barbed end.

4. Making note of the orientation for reassembly,

unscrew the check valve from the tank

(counterclockwise) using a 7/8” open end

wrench.
5. Using a pencil or screwdriver, carefully push the

valve disc up and down. If the valve disc does

not move freely up and down, the check valve

needs to be cleaned or replaced.

6. Clean the check valve with warm soapy water

and make sure to dry thoroughly before

reinstalling. If the disc valve still does not move

freely up and down, it will need to be replaced.

7. Apply thread sealant to the check valve threads and reinstall into the

tank by turning clockwise. Make sure it is the same orientation as

when it was removed.

8. Replace the bleeder tube by pushing it back onto the barbed fitting of

the elbow.

9. Replace the transfer tube and tighten compression nut.

CLEANING THE AIR FILTERS

A dirty air filter will

A = Cover(s)

B = Filter element(s)

reduce the compressor’s
performance and life. To
avoid any internal
contamination of the
pump, the filters should be
cleaned frequently, and
replaced on a regular
basis. Felt filters should be
cleaned in warm, soapy
water, rinsed, and allowed
to air dry before reinstallation. Paper filters should be replaced when dirty.
Do not allow the filters to become filled with dirt or paint. If the filter
becomes filled with paint, it should be replaced. Direct exposure to dirty
conditions or painting areas will void your warranty.

CHECKING THE RELIEF VALVE

Pull the tank safety valve daily to ensure that it is operating properly

and to clear the valve of any possible obstructions.

TESTING FOR LEAKS

Check that all connections are tight. A small leak in any of the

hoses, transfer tubes, or pipe connections will substantially reduce the
performance of your air compressor. If you suspect a leak, spray a small
amount of soapy water around the area of the suspected leak with a spray
bottle. If bubbles appear, repair or replace the faulty component. Do not
over tighten any connections.

STORAGE

Before storing the compressor for a prolonged period, use an air

blow gun to clean all dust and debris from the compressor. Disconnect the
power cord and coil it up. Pull the tank safety valve to release all pressure
from the tank. Drain all moisture from the tank. Clean the filter elements
and filter housings; replace the elements if necessary. Drain the oil from
the pump crankcase and replace it with new oil. Cover the entire unit to
protect it from moisture and dust.

SERVICE INTERVAL

Perform the following maintenance at the intervals indicated below.

Daily or

after each

use

Every 100

operating hours

After first 8 hours

and then every 100

operating hours

Inspect air filters (clean or replace as necessary)

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