TSE DPT60, Руководство пользователя

Страница: 283 / 459

54
Series 90 Minor Repair Instructions
Series 90 Shaft Seal Components
Shaft Seal and Shaft Replacement
Remove Seal Carrier Remove Screws Holding
Retainer Plate and Seal
Carrier
90000270 90000271
Press Out Old Seal New Seal Installed in Carrier
90000272 90000273
90000846E
Lip type shaft seals are used on Series 90 pumps and
motors. These seals and/or the shafts can be replaced
without major disassembly of the unit. However, replace-
ment usually requires removal of the pump or motor from
the machine.
1. Position the pump with the shaft facing up.
Note: If the unit is positioned horizontally when the
shaft is removed, the cylinder block could move
out of place, making shaft installation difficult.
2. Remove the three or four screws holding the retainer
plate and seal carrier to the housing, using a 10 mm
hex wrench (030 and 042 units), a 5 mm internal hex
wrench (055 through 100 units), or a 6 mm internal
hex wrench (130 through 250 units). Remove the
retainer plate.
Note: Certain earlier production units use a one piece
retainer plate and seal carrier.
3. After removing the screws, the spring force on the
shaft may move the seal carrier out of its bore by
approximately 5 mm (1/4 inch). If the seal carrier
does not move from its bore after removing the
screws, pry it from its bore as shown and/or lightly tap
the end of the shaft with a soft mallet.
4. Remove the O-ring from the seal carrier.
5. Place seal carrier and seal in an arbor press and
press out old seal.
6. Inspect the seal carrier, the new seal and the O-ring
for any damage or nicks.
7. Using the arbor press, press the new seal into seal
carrier. Be careful not to damage the seal.
Note: The outside diameter of the seal may be lightly
coated with a sealant (such as Loctite High
Performance Sealant #59231) prior to installa-
tion. This aids in preventing leaks caused by
damage to the seal bore in the seal carrier.
Screw
Seal
O-ring
Seal
Seal Carrier
(One Piece)
Seal Carrier
Retaining Plate
Screw