Dental Delivery Unit Operation Manual
REV-A
Page 29 of 45
5.6.2.3 Tightness Adjustment
If the headrest is difficult to rotate owing to the tightness, please pull joystick to the top, remove
the bolt and adjust the nut clockwise, then pull the joystick back to fix the headrest.
1.joystick 2.bolt 3.nut
1.bolt 2 fixing board
If it is difficult to raise or lower the headrest, then you need to adjust the tension of slide bar.
To adjust the tension, please use a screwdriver to rotate clockwise to increase friction; or rotate
counterclockwise to reduce friction.
5.6.3 Armrest
The design of armrest gives considerations to both you and your patient.
If the patient wants to sit down/get up, he just needs to pull the armrest out to get it unlocked,
and then rotate it forward/backward to the get up/sit down position. To relocate the armrest,
please raise it to the standard position.
1.standard position 2.get up/sit down postion
Romove backrest cushion
5.6.4 Remove of Cushion
The design of cushions makes it more convenient to be removed and replaced. The cushions
are installed on three positions: backrest, seat and headrest.
5.6.4.1 Backrest Cushion
To remove the cushion of backrest, you need to hold the bottom of the gasket tightly and lift it
