|Operations with Shaping Machines - Course: Mechanical woodworking techniques. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 18 p.)|
Regular and proper servicing and maintenance of the machine is to a marked extent a guarantee for proper functioning and, as a result, equally for considerable job safety. Dirt should be removed daily from the table and support surfaces. The throughgoing bores and locator grooves of the machine table become soiled extremely quickly. All adjustment facilities of the guide rule and the spindle must be cleaned after machine and lightly greased at regular intervals.
The roller guide of the movable table must always be kept free from dust. Soilage can hamper the forward movement of the movable table and, thus, lead to accidents.
Every machine has an operating manual and a lubrication plan. These documents indicate:
- where and how lubrication of the machine should be undertaken, similarly also the lubriscation points,
- which lubricants should be used,
- the necessary lubrication quantities,
- the lubrication intervals for the various positions.
These stipulations, which vary according to machine types, must be adhered to strictly.
The passage of air to the motor must not be impeded by fallen chips. Motor damage through overheating can result from defective air cooling of the drive machine. There ist, moreover, also a great risk of fire!
The drive belt, as power-transmitting machine element, must always have the prescribed pulley tension.
The belt may loosen through wear and tear, in which case full power transmission is no longer possible. This state of affair can be discerned by a reduced spindle rotational speed as the machine is taxed. Consequently, a belt tightening facility has been positioned near to the motor attachment. Thus, the belt can be tightened, respectively relieved as it is switched to the other belt pulley pair. (This is necessary when switching to another rotational speed category).
The drive belt should not, however, be too tight. A belt which is too tight can result in:
- losses in power transmission through greater power requirements in the belt gears,
- excessive strain of the motor and spindle bearings and
- a more rapid wear of the drive belt