Viking Pump TSM410.1: F-FH 4625 - Manual (Page 4)

SECTION TSM 410 1 ISSUE D PAGE 4 OF 5
FIGURE 3
CUTaWaY VIEW OF SERIES 4625
ITEM NaME OF PaRT ITEM NaME OF PaRT ITEM NaME OF PaRT
1 Locknut 6 Grease Fitting 11 Idler
2 Lockwasher 7 Casing 12 Head Gaskets
3 Packing Nut 8 Casing Bushing 13 Idler Pin
4 Ball Bearing 9 Mechanical Seal 14 Head
5 Washer, Bearing Retainer 10 Rotor and Shaft 15 Capscrews
FIGURE 2
ExPlODED VIEW SERIES 4625
All parts should be examined for wear before the pump is
put together When making major repairs, such as replacing
a rotor and shaft, it is advisable to install a new casing
bushing
INSTallING CaSING bUSHING - The casing bushing
can be replaced in the following manner: Insert a bar
approximately 9375” diameter and at least 3 5” long in the
seal end of the casing and press the bushing out of the
casing When installing a new bushing, an arbor press
should be used Coat the bushing with light lube oil and press
the bushing into the bore from the head end The bushing
aSSEMblY
should be positioned so that the face of the bushing is 0625”
below the surface of the step machined for the seal seat, see
Figure 4.
1. Clean all parts thoroughly
2. Coat the complete seal seat with light oil and install
it into the casing Make sure that the pins on the
backside of the seat go into the slots provided for
them in the casing (Putting a light pencil line in the
bore of the seal seat in line with the pins will help
keep the pins in proper alignment with the holes)
3. Coat the rotor shaft with light oil Slide the
mechanical seal wave spring onto the shaft Coat
GREaSE
FITTING
CaSING
ball
bEaRING
WaSHER
(bEaRING RETaINER)
MECHaNICal
SEal
lOCKNUT
lOCKWaSHER
ROTaRY
MEMbER
CaSING
bUSHING
IDlER
HEaD
IDlER PIN
PaCKING
NUT
SEal
SEaT
HEaD
GaSKETS
ROTOR
& SHaFT
CaPSCREW