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ROTARY JOINT MAINTENANCE
REPLACEMENT OF THE SEALS IN THE ROTARY JOINT
Step 5
Rotary joint reassembly:
Lubricate the main seals (dg8), glide bearings (dg7) and o-rings (RR) with grease or
NPK Assembly Lubricant. Install the main seals into the “Spindle Case” (BZ) first. Then
install the first o-ring and glide bearing to the underside of the spindle case. Slide the
“Spindle Case” over “Spindle” (CA). Then install second glide bearing and o-ring.
Install the cover plate (CH) and three flat head socket screws (AF9). Make sure the
counterbalance valve cartridge (cb1) is tight.
Figure 5
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