Danfoss 51 Series Service Manual

2. Inspect the sealing area on the shaft for wear.
Common parts of a cartridge flanged motor
L40
Shaft seal
L75 Seal carrier
L50
L40
L75
L80
P101225
Reassembly
1. Orient the new shaft seal (L40) so the cupped side faces inward.
2. Press new shaft seal (L40) into the seal carrier (L75).
3. Press until the shaft seal bottoms out in the cavity.
4. Using petroleum jelly to lubricate, install new O-ring (L50) to the groove in the housing bore.
5. Using a seal protection sleeve on the shaft, push the seal carrier (L75) into the housing bore until it
clears the snap ring groove.
6. Install snap ring (L80) into the grove in the housing bore, using the appropriate snap ring pliers.
7. Remove the shaft seal protection sleeve.
Loop flushing shuttle valve
Disassembly
1. Thoroughly clean all external surfaces before disassembly.
2. Using an 11/16 inch hex wrench, remove the two hex plugs (G20) from the endcap.
Service Manual
Series 51 and 51-1 Motors
Minor repair
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©
Danfoss | March 2016 11008567 | AX00000013en-US0202

Danfoss 51 Series Specifications

General

Brand	Danfoss
Model	51 Series
Category	Engine
Language	English