Harrington Hoists Chainsaw Sharpener TCR Manuel D’Utilisation

 

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3.0  Preoperational Procedures  

3.1.1 

 Pressure and Flow  -  Verify that the air supply system has capacity to supply your 

air hoist with required pressure and flow.  Otherwise the hoist may operate poorly or may fail to 
operate.  See 

Section 3.2

.   

3.1.2 

 Lubrication  -  The hoist requires lubrication for proper operation.  The oil in the air 

supply is the primary source of lubrication to the hoist.  Therefore, a dedicated air supply lubricator must 
be used with the hoist.  Refer to 

Section 3.3

. 

3.1.3 

 Air Quality  -  Good air quality is essential to prevent damage to your hoist and to 

ensure its proper operation.  The air must be clean and free of debris such as dirt and rust.  Refer to 

Section 3.4 

for filtration requirements.  The air must also be dry; free of moisture and water.  Refer to 

Section 3.5

. 

3.2.1 

Capacity  -  The air supply system must be capable of delivering the required airflow (cfm) to the hoist 
inlet port.  Without the required airflow the hoist will not operate properly or may not operate at all.  See 

Section 2.0

 for your hoists air consumption requirements.  In determining if your system is capable of 

supplying the required airflow, consider the following: 

 

Capacity of compressor(s) and tank 

 

Other air consuming equipment 

 

Flow restrictions such as pipes, hoses, valves and fittings 

Inadequate capacity will cause a significant drop in pressure when the hoist is operated, and could 
cause poor performance or failure to operate. 

3.2.2 

Regulation  -  The hoist requires a constant supply of air at a pressure of between 60 and 90 psi.  If the 
air supply is not regulated or is regulated at a pressure greater than 90 psi, then a regulator must be 
used.  The regulator may be located anywhere upline of the lubricator in the air supply to the hoist. 

3.3 Lubrication 

3.3.1 

 The hoist must be supplied with its own lubricator.  The lubricator must be located 

as follows: 

1)  Best location  -  At the hoist inlet.  In this case the lubricator can be either the mist type or drop 

type. 

2)  Second best location  -  No more than 

15 feet

 away from the hoist, at the same elevation or 

above the hoist inlet.  In this case the mist type lubricator must be used. 

3)  Third best location  -  No more than 

15 feet

 away below the hoist.  In this case the mist type 

lubricator must be used. 

3.3.2 

 The lubricator must be set to deliver the equivalent of 10 to 15 drops of oil per 

minute (2 to 3 cc/minute).  The hoist’s exhaust will emit a fine oil mist when properly lubricated. 

3.4.1 

 The air entering the hoist inlet must not contain any particulate greater than 5 

microns in size.  Therefore, the hoist must have a 

5 micron

 filter in its air supply.  The filter must be 

upstream of the lubricator.