Draper 77897 Instructions Manual - Page 8

Browse online or download pdf Instructions Manual for Air Compressor Draper 77897. Draper 77897 16 pages. 100, 150 & 200 litre compressors

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OPERATION AND USE

ADJUSTING THE PRESSURE SWITCH

Fig.5.

(C)

(Fig.5):

Note: This is the only operation where it is

(D)

acceptable to switch the compressor off

without using the pressure switch.

To decrease the pressure switch, run the

compressor up to the desired capacity for the

pressure switch to be set. At this point, turn

the mains power off and do not operate the

red button on the pressure switch as this will

release the pressure. Disconnect the machine

from the power source before loosening

screw (D) to remove the cover. With this

removed, the adjustment bolt (C) will be

visible. Adjust this anti-clockwise gently until

the switch is heard to release the pressure.

Replace the cover and tighten the screw. The

switch will now be set to the new pressure.

To increase the pressure switch, remove the

switch cover (having disconnected the

machine from the power supply) and turn the

adjustment bolt clockwise 3 turns and

replace the switch cover. Run the compressor

up to the desired capacity for the pressure

switch to be set (do not let the compressor

run past its maximum pressure). At this point

turn the mains power off and disconnect from

the supply. Remove the cover and adjust the

bolt anti-clockwise gently until the switch is

heard to release the pressure. Replace the

cover and tighten the screw. The switch will

now be set to the new pressure.

HOW TO ADJUST WORKING PRESSURE

Fig.6.

(Fig.6):

See in the instruction manual for the rated

(E)

pressure value of the accessory you are going

to use.

By means of the pressure reducer (E) you

can adjust delivery air pressure. Just turn the

knob clockwise to increase the pressure or

anti-clockwise to decrease the pressure.

Check the operating pressure value on

pressure gauge (F).

After having used your compressor, set

(F)

pressure to zero by turning knob (E) so as to

avoid damaging the pressure reducer.

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