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BELT ADJUSTMENT:

Install the triangular belt and adjust it so when pres-
sure is applied onto center, there should be 1/2”
(approx.) slack. See sketch

Note: 

If the belt is installed too tightly, overloading of

the motor will occur. This will cause the motor to
overheat. If the belt is installed too loosely it will slip
and unstable operation and vibration  will occur.

Caution: 

The rotating direction for the flywheel must

follow the arrow shown on the beltguard. 

OPERATION INSTRUCTIONS

GENERAL DESCRIPTION OF OPERATION:

To compress air, the pistons move up and down in the
cylinder. On the down stroke air is drawn in through the
inlet valve. The discharge valve remains closed. On the
upstroke of the piston, air is compressed. The inlet air
closes and compressed air is forced out through the dis-
charged valve, through the check valve into air receiver.
Working air is not available until the compressor has
raised the air receiver above that required at the air
service connection. The air inlet filter openings must be
kept clear of obstructions, which could reduce air deliv-

ery of the compressor.

Depending on the CFM requirements of the tools used,
your new air compressor can be used for operating paint
sprayers, air tools, grease guns, air brushes, caulking
guns, sandblasters, inflating tires and inflatable toys,
spraying weed killer and insecticides, etc. An air pres-
sure regulator is usually necessary for most of these
applications.

IT IS STRONGLY ADVISED, BEFORE OPERATING THE COMPRESSOR THE FOLLOWING POINTS ARE

CAREFULLY CHECKED. 

(Daily)

1.  Check to see that all nuts and bolts are snug.

2.  Check to see if the belt is installed properly, with proper tension.

3.  Check if the oil level is full. 

4.  Check if the compressor is fixed on a strong, stable level base.

5.  Check if the oil breather is clean.

6.  If the air filter is dirty it should be replaced or cleaned.

7.  Check if the flywheel can be turned easily and smoothly.

Summary of Contents for R28H

Page 1: ...made by the purchaser against the transportation com pany at the time the shipment is received BE SAFE Your new ranger air compressors are designed and built with safety in mind However your overall...

Page 2: ...icu lar model and adjustment and should never be tampered with Adjustment by user will auto matically void the warranty Pressure switch The air pressure switch is set at the factory for optimum perfor...

Page 3: ...y and well ventilated area The compressor should be located 12 to 18 from a wall or any other obstruction that would interfere with the air flow through the fanbladed belt wheel Place the com pressor...

Page 4: ...r is not available until the compressor has raised the air receiver above that required at the air service connection The air inlet filter openings must be kept clear of obstructions which could reduc...

Page 5: ...n if needed and replace belt if worn Inspect air system for leaks by applying soap to all joints Tighten those joints if leakages are observed 4 250 HOURS OR SIX 06 MONTHS Which ever comes first Chang...

Page 6: ...replace as necessary Adjust belt tension Replace check valve Safety valve releasing Defective pressure switch or improper adjustment Check for proper adjustment and if problem persists replace pressu...

Page 7: ......

Page 8: ...16 521840AD Piston Ring Set 1 55c 3004U1 PRessure Switch cover 1 17 520347 Compressor Ring 2 55d 3004114 PRessure Switch body 1 18 520447 Qil Ring 1 56 30032012L Pressure Gauge 1 19 520247 Piston 1 5...

Page 9: ......

Page 10: ...4A Nipple 2 20 52071238 Piston Pin 1 58 30031512L Pressure Gauge 1 21 601812 Retainer Piston 2 59 30051414B Pressure Adjuster 1 22 5206AD Connecting Rod 1 60 300214B Air Cock 1 23 5308AD20 Crankshaft...

Page 11: ......

Page 12: ...520051 Piston Ring Set 2 53 5304UB10 Washer Pulley 1 18 520351 Compressor Ring 4 54 60018L Spring Washer 1 19 520451 Oil Ring 2 55 6005840L Bolt 1 20 520251 Piston 2 56 01UB30 Pump 1 21 52071244 Pisto...

Page 13: ...8 Washer 8 84 60068 Six Angle Nut 8 85 2008205 Motor Base 2 86 2011105 Safety Guard Seat S 1 87 2011105 Safety Guard Seat S 1 88 4004A48 V Belt 1 89 6005815 Bolt 8 90 60028 Washer Pully 8 91 2009600S...

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