Page 4
PL70-1042EN
07/26/2012
Installation:
Make certain the airline is clean and free of scale and
dirt before connecting to the air motor. Check all pipe
ttings to make sure there are no air leaks.
During continuous service, these air motors should not
operate faster than 65% of their rated free speed. Refer to
the Specications Table. An airline lter/lubricator should
be installed as close to the air motor as possible.
During intermittent service, the splash lubrication from
the motor case is adequate.
Check all cap screws to make sure they are properly
tightened.
If an excessive amount of water is present in the airline,
a water trap should be installed to trap as much as
possible before it reaches the motor.
Lubrication:
Fill the motor case to the proper level before operating
the motor.
Use Engine Oil* API Service Classied “SC” in the
following weights:
Above 32° F - SAE 30W
Below 32° F - SAE 10W
Check the oil level daily and ll as necessary. If an
airline lubricator has been installed, check daily and ll
as necessary.
Motor Case: Approximately one (1) quart of oil is
required to ll the motor case to the proper level.
To check the motor case for proper oil level, open the oil
level pet cock. If oil does not ow from the pet cock, add
the appropriate oil until it starts to ow and then close
the oil level pet cock.
If the airline carries an excessive amount of water and
a water trap can not be installed, use a good grade of
motor oil (an oil that will emulsify with water) to prevent
damage to vital motor parts.
Gear Case: Approximately one (1) quart of oil is required
to ll the gear case to the proper oil level.
Use Engine Oil* API Service Classied “SC” in the
following weights:
Above 32° F - SAE 30W
Below 32° F - SAE 10W
The oil must ow at all times to properly lubricate the
gears and bearings.
To check the gear case for proper oil level, open the oil
level pet cock. If oil does not ow from the pet cock, add
the appropriate oil until if starts to ow and then close
the oil level pet cock.
Care and Maintenance:
Service the air motor regularly. The breather cap should
be inspected frequently to make sure it is not plugged
with dirt.
The drain plug in the motor case should be removed
occasionally to allow any water or condensate in the
bottom of the case to drain off. This should be done
before adding new oil and after the motor has been idle
long enough to permit the water and oil to separate.
Excessive use of oil is usually due to worn pistons and
rings, a worn distributing valve and bushing, a damaged
oil seal or a clogged breather cap.
Assembly Instructions:
Place the motor case face up (cylinder opening up) on
a table. Install the valve bushing into the motor case
counterbore from the outside until it bottoms out.
NOTE: The valve bushing must be put in a freezer
before assembling into the motor case.
Install the ve cylinder liners in the cylinder holes of the
motor case until they bottom out. Lightly oil all pistons
and cylinder liners.
Insert the master piston assembly directly across
from the breather cap hole and attach the rod retainer
assembly. Assemble the piston pin (threaded side up).
Place the master piston washer over the connecting
rod (washer ears go to the side of the connecting rod).
Tighten the master piston nut and bend the washer ears
over the nut.
Assemble the other four pistons to the rod retainer
assembly using the piston pins. After all piston pins have
been installed, secure with the retaining ring.
Place the cylinder gaskets and cylinder caps over the
cylinder holes of the motor case and secure with the
screws (tighten to 7 ft. lbs. torque).
Cleco®
General Instructions
