Carlyle 5F20 - Crankshaft Seal Inspection and Replacement; Before Installing Seal; Installation

18
Crankshaft Seal Inspection and Replacement
The crankshaft seal in all current 5F, H compressors is a rotating,
bellows-type seal. This seal is the service replacement for all earli-
er seal assemblies. Figure 29 shows Types I and II of this design
(5H40-5H126 compressors). Refer to Fig. 29 and 30.
BEFORE INSTALLING SEAL
1. Pump-end bearing head must be in place for proper position-
ing of seal on crankshaft.
2. Be sure shaft extension and edges of keyway are free of sharp
edges and nicks. Shaft must be clean and free of rust. Polish
shaft with crocus cloth.
3. Check seal assembly for proper bellows placement and clean-
liness.
4. Apply compressor oil to seal assembly and crankshaft, com-
pletely saturating bellows and carbon ring.
INSTALLATION
Refer to Fig. 30 for procedure.
Fig. 29 — Service Replacement Seals
IMPORTANT: Do not attempt to repair or replace seal
components. Replace complete seal assembly with current
rotating-bellows-type assembly. Do not disassemble bellows as-
sembly of service replacement seal.
OOVE:R PLATE WI TH
I NT EGRAL SEAi. SEAT --.._
COVER PLA TE G,ASKET
CAF!EIO N R
SUL ffOSe:
FELT WI PER
A - 5F20, 30 (Type I)
CARSO N RlllG
SEAL Ost
OOV~ P ATE GASKE
CAR80N RI NG
$EAL NOS£
- \
COVER PLATE WI TH INTEGIRALSEAl SEA T
B - 5F40, 60 AND 5Hi40 THRO UGH ae· (Type II) - iypical
·F540 al'KI 60 - 1.5~ cllamew : 5H40 lh r ol.lgh 86 - 2.0" diameter.
C-OVER PLATE W' ITH I mGR SEll.L SE_A T
C - 5H120, 126 (Type II)