Nussbaum 4.50H, Руководство по эксплуатации

Страница: 32 / 47

Operating instructions and documentation
4.50H/ 4.50H plus
- 32 -
• The hydraulic oil has to be changed at least once a year. To change the oil, lower the lift into its
lowest position. Empty all tanks and refill with clean oil, approx. (see chapter 3.) per hydraulic
unit are needed.
Use an ATF-Suffix hydraulic-oil (OEST Company) if the ambient temperature is under 5
degrees centigrade. After filling, the hydraulic oil must be between the upper and lower
markings of the oil level gauge.
Remove the old oil according to the appropriate regulations.
• Check the hydraulic tubes for leakage.
• It is prescribed (VBG 14, § 52-3 German regulation) to exchange the hydraulic hose if its
necessary, but at least every 6 years.
• Check that all screws and bolts are correctly torque (turning moments, see the list)
7.2 How often must the lift be cleaned?
A regular and appropriate maintenance practice will aid the preservation of the lift.
No guarantees can be given when damage (egg rust or fading colour) is the direct result of poor
maintenance and cleaning practice.
Regular cleaning of all kinds of dirt is the best protection against wear and the formation of rust and
will prolong the life of the lift
Dirty deposits that can cause rust include:
• de-icing salt
• sand, pebble stone, natural soil
• all types of industrial dust
• water; also in connection with other environmental influences
• all types of aggressive deposits
• constant humidity caused by insufficient ventilation
Obviously this is dependent on the type of work being done with the lift, the degree of cleanliness
of the workshop and location of the lift. The degree and amount of dirt is dependent on the season,
on the weather conditions and the ventilation of the workshop.
During poor conditions it may be necessary to clean the lift once week, but cleaning once a month
will suffice.
Clean the lift and the floor with a non-aggressive and non-abrasive detergent. Use a gentle
detergent to clean the parts. Use a standard washing-up liquid and lukewarm water.
- Do not use steam jet cleaners.
- Remove all dirt carefully with a sponge or if necessary with a brush.
- Ensure that no washing-up liquid is left on the lift after cleaning.