Harrington Hoists Chainsaw Sharpener TCR User Manual download pdf (Page 12)

3.0 Preoperational Procedures

3.1 Air Supply System Requirements

3.1.1

NOTICE

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

CAUTION

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

CAUTION

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 Air Supply Capacity And Regulation

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

CAUTION

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

CAUTION

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 Filtration

3.4.1

CAUTION

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.

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Harrington Hoists Chainsaw Sharpener TCR User Manual Page 12

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