Operating Instructions Maier Rotary Joints
Series DP
B-DP_en -Version 4 – 14.02.2011
Keep these instructions for future reference!
8
7 Maintenance
7.1 Safety during maintenance
Only staff that has read and fully understood these operating instructions and that is fully aware of the dan-
gers resulting from the rotary joint as well as the appropriate safety precautions may work with Maier rotary
joints. Such staff must have at least the knowledge of a trained locksmith or industrial mechanic who has
experience with pressurized components.
Perform work on the rotary joint only when the machine/system is idle.
Allow the rotary joint to cool down before you take up work or wear safety equipment to protect against the
heat.
Always wear safety glasses when performing work on the rotary joint to protect against escaping medium.
Use only genuine Maier or Maier-approved spare parts (standard norm parts). If you use other parts, this
may have adverse effects on the safety of the rotary joint.
Maier offers on site specialist service. We can also train your service staff - just get in touch with us!
If you have to remove protective equipment to perform the work, refit such equipment when you are done
and check it for proper operation.
Make sure to properly tighten all screws (see sheet "Specifications and Dimensions").
Always observe the safety information in chapter 1 on page 2.
7.2 Maintenance plan
Due to lifetime lubrication, the rotary joints are maintenance-free up to operating temperatures of up to
max. 80°C (176°F). The bearings must be lubricated if the rotary joints are operated at greater tempera-
tures. Please refer to "Specifications and Spare Parts" for information on lubrication intervals and volumes.
Interval Activity
Explanation
According to section
"Specifications and
Spare Parts“
Lubricate DP rotary joints
depending
on operating temperature.
Lubrication volume depends on the nominal di-
ameter of the rotary joint (see section "Specifi-
cations and Spare Parts“).
Every 12 months
Check all bearings and seals
and
replace them
By Maier customer service
