Nordson Reciprocator HF80 270

Power supply to the machine turned off and guns supporting-arms removed

Main panel removed by unscrewing the screws that fix it to the main structure

Machine balanced so that the trolley is in a useful position for the operator

Electric motor blocked by inserting a screwdriver into the inner cooling fan

Nuts loosened, not completely and leaving a certain pressure on the thread, that block the eccentric hubs of the sliding blocks

Eccentric hub adjusted till the sliding block and the guide are in contact

Second hub adjusted in the same way

Two aforesaid operations repeated for a better adjustment

Eccentric nuts blocked when finished

Warning: Ensure the trolley is in a useful position to operate.

Counterweight stroke blocked with a staff to avoid its fall

Eccentric pivots rotated till the blocks unloosen

Eccentric hub turned with a suitable wrench to increase the play between the rollers and the guide

Hubs removed from the trolley, removing one sliding block at a time

ATTENTION: If the counterweight is not blocked by an iron staff, it will slide up to the lower end of stroke and consequently the trolley will be lift up to the upper limit switch.

New sliding block with hub assembled, screwing it to the rear plate

Reverse operations for the reassembling done

See Chapter 12.6 to adjust the sliding blocks.

Turn off the power supply to the machine

Position and block the gun supporting-arm so as the counterweight is in line with the opening

Refer to Chapter 12.8 to remove all the counterweight plates

Unscrew the two+two nuts A of the rod and the two upper screws B, with a suitable wrench, so as to slacken the belt and remove it from the pulley

ATTENTION: do not remove the screws completely so as to avoid that the counterweight and the trolley fall

Tilt sideways the counterweight plate, so as to remove the sliding guides from its seats with a suitable wrench

ATTENTION: it is necessary to hold the counterweight structure so as to avoid that it falls down. Hence a second operator is required for safety reason

Replace them with new counterweight guides

Power supply to the machine turned off

Trolley moved so that the counterweight slides up/down up to reach the opening

ATTENTION: to make the work easier and for safety reasons, it is better that the following operations are carried out by two operators.

Plates of the counterweight added or removed to balance the machine

Sign off on the counterweight adjustment

Power supply to the machine turned off

Main panel removed by unscrewing the screws that fix it to the main structure 32

Screw that fix the limit switch group unscrewed and slid up to the required position. 33

ATTENTION: make sure that the electrical cable is correctly positioned.

Sign off on the stroke adjustment