5 Maintenance
Read the instructions carefully. The items refer to the parts list and service kits section.
Lubricate the rubber seals before fitting them.
: Relates to the shaft seal.
5.5 Assembly of pump/double mechanical shaft seal
S
Stteepp 11
1. Fit O-rings (15) in rotating seal rings (14).
2. Fit spring (13) on one of the rotating seal rings (14) and place the drive ring (52) in between.
3. Fit the second rotating seal ring (14) on the other end of the spring.
N
Noottee:: Ensure that both drive pins on the drive ring enter the notches in rotating seal rings.
4. Place the parts on the stationary seal ring fitted in back plate (25).
S
Stteepp 22
1. LKHUP-70: Turn the drive ring (52) in order to place it correctly
on the pump shaft (7).
2. Fit the second rotating ring (14) on the other end of the spring.
3. Place the parts on the stationary seal ring fitted in back plate
(25).
N
NO
OTTE
E
Ensure that both drive pins on the drive ring enter the notches in
rotating seal rings.
Only LKHUP-70
TD239-007_1
S
Stteepp 33
1. Lubricate O-ring (44) and slide onto seal housing (40a).
2. Lubricate O-ring (50) and fit on stationary seal ring (51) and fit
this in the seal housing.
3007-0028
S
Stteepp 44
1. Fit O-ring (12) on stationary seal ring (11) and lubricate.
2. Screw the stationary seal ring into back plate (25).
C
CA
AU
UTTIIO
ON
N
Must be tightened by hand to avoid deforming the stationary seal
ring. (Max. 7Nm / 5 lbf-ft)
Use the tool
supplied
3007-0033
Left hand
thread!
S
Stteepp 55
1. Clean the sealing surfaces with contact cleaner.
2. Fit seal housing (40a) on the back plate (25) and tighten screws
(41).
3007-0055
26
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