Viking Pump TSM320.1: C-FH 56/456 - Manual (Page 4)

SECTION TSM 320.1 ISSUE E PAGE 4 OF 7
fIgURE 2
EXPLODED VIEW SERIES 56 aND 456
ITEM NaME Of PaRT ITEM NaME Of PaRT ITEM NaME Of PaRT
1 Electric Motor 10 Inner Packing Gland (Series 56 only) 19 Rotor and Shaft Assembly
2 Motor Shaft Pin 11 Packing Spring (Series 56 only) 20 Idler
3 Coupling with Setscrew 12 Casing 21 Head Gasket
4 Mounting Bracket 13 Cap 22 Idler Pin
5 Capscrew for Bracket to Motor 14 Gasket for Cap 23 Head
6 Setscrew for Pump to Bracket 15 Adjusting Screw 24 Capscrew for Head
7 Packing Nut 16 Spring 25 Mechanical Seal (Series 456 only)
8 Outer Packing Gland (Series 56 only) 17 Poppet
9 Packing (Series 56 only) 18 Casing Bushing
1. Remove the capscrews and the head from the pump.
It may be necessary to apply a slight pressure on the
drive end of the rotor shaft to free the head from the
casing. DO NOT PRY the head from the casing as this
may damage and mar the gasket surfaces.
2. Remove idler from idler pin. If the idler pin is worn, both
the head and idler pin, and idler should be replaced.
3. Next, completely remove the rotor and shaft from the
casing by exerting pressure on the drive end of the
shaft.
4. Remove the packing nut.
5. The pump is now ready for removal of packing or
mechanical seal. Refer to figure 3 or 4 for example. It
is recommended a new mechanical seal or packing be
used every time a pump is completely disassembled.
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 usually considered advisable to also
install a new casing bushing.
fIgURE 3
fIgURE 4
MEChaNICaL
SEaL (456)
PaCKED
(56)