MTU Detroit Diesel 183 Series Technical Publication page 531

Task Description
Assembly instruction for rotary seal, item 5:
• Seal support in housing with surface sealant MMN 377 D
- Loctite 573.
• Using a suitable assembly tool, press-fit the rotary seal into the housing and press-fit dry onto the shaft; hold
shaft end firmly in position.
Protrusion of rotary seal from the housing edge: ≥ 11.3 + 0.1 mm.
Installation dimension 11.9 ± 0.3 mm (position of gasket on impeller) is achieved by shrink-fitting the impeller.
This dimension is indicated by internal overpressure (1 bar) or by a vacuum in the fluid chamber.
Press-fit impeller
Heat impeller (6) to 80 °C.
Using the protective glove, mount the impeller on the shaft.
Press-fit impeller, free of oil and grease, onto shaft to a gap of 0.6 + 0.4 mm; hold shaft firmly in position.
Using a gauge, check the gap.
Check impeller for ease of movement.
20080/1 E 98-12
Notice!
Risk of injury!
Group 20
Subgroup 1401a
Page 5