Service, Pneumatic Masts
 

Installation - Filter-Lubricator and Filter-Regulator-Lubricator

The use of an in-line Filter-Lubricator or Filter-Regulator-Lubricator is a convenient and effective means of lubricating a Will-Burt pneumatic telescoping mast. Both the Filter-Lubricator (P/N 90634) and the Filter-Regulator-Lubricator (P/N 900484) are designed with a lubricator which provides a fine mist of lubricant into the air supply line of the mast and a bronze filter element which cleans the air and separates water which has condensed in the air supply line. The Filter-Regulator-Lubricator (P/N 900484) has an air regulator for those installations where the pneumatic system/sir supply must be regulated to the low operating pressure of the telescoping mast. 

Installation

Caution: Wear eye protection at all times.
1. Before mounting the Filter-Regulator-Lubricator or Filter-Lubricator, be sure that the unit will not be exposed to direct sunlight for extended periods.
2. Using 1/4" NPT fittings, the Filter-Lubricator or Filter-Regulator-Lubricator should be installed in the air supply line ahead of the air control valve. (Refer to Service Sheet # 413.) Exhaust air should not enter this device.
3. The arrows on the top of the Filter-Lubricator and Filter-Regulator-Lubricator should correspond to the direction of the air flow into the mast. The air will pass through the filter, then the regulator (if used) and finally the lubricator.
4. The unit must be mounted horizontally with the filter and lubricator bowls on the bottom as shown in the diagram below.
5. Leave 2 1/2" of free space below the unit to allow for easy access to the filter and lubricator bowls.
6. Leave access to the fill plug (10) on top of the lubricator module to allow for refilling.

Filling Lubricator Reservoir:

Caution: Shut off air supply and depressurize the system on both sides of the Filter-Lubricator or Filter-Regulator-Lubricator.
1. Remove the black fill plug (10) on the top of the lubricator module (7) in front of the adjustment screw (11).
2. Fill the TMD mast lubricant P/N 900600 or SAE 10 light weight machine oil to the top of the sight glass of the nylon bowl (9).
3. Replace and tighten the fill plug.

Caution: Nylon carbonate bowls may be damaged and possibly fail if exposed to synthetic oils, thinner solvents, trichlorethylene, hersene, or other aromatic hydrocarbons.

Adjustment of Air Regulator:

Unlock the pressure adjustment knob (6) on the regulator module by gently pulling downward. Only a slight motion will be detected.
Clockwise to increase output pressure.
Counterclockwise to decrease output pressure.

Adjustment of the Lubricator:

Turn the small silver colored adjustment screw (11) on the top of the lubricator module:
Clockwise to reduce oil flow.
Counterclockwise to increase oil flow.
Adjust the oil usage to approximately 1 bowl for 3 to 4 extensions of the mast.

Cleaning the Filter:

1. Periodically drain the filter bowl (3) by depressing the bleed pin (2) on the bottom of the bowl.
2. The bowl can be removed for cleaning

Caution: Shut off air supply and depressurize the system on both sides of the Filter-Lubricator or Filter-Regulator-Lubricator before removing the filter bowl for cleaning.

3. Unscrew the metal guard (3) around the filter bowl and remove the filter bowl.
4. Inside the filter bowl (3) is a bronze filter element (4) which should be changed periodically.
5. Replace bowl and metal guard.

Note: Although this method of lubrication is effective, the mast should also be periodically cleaned and lubricated as described in Service Sheet # 403.

Replacement Parts:

900664 Bronze Filter Element (4) O Ring Bowl
900670 Nylon Bowl w/O-ring, Lubricator (9)
900699 Sight Dome, Lubricator (8)
900670 Nylon Bowl w/O-ring, Filter (3)
900663 Filter Cap/Plug (10)




Wenzlau Engineering | 2950 East Harcourt Street, Rancho Dominguez, California 90221 | Ph. 310.604.3400

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