Assembly – Viking Pump TSM410.2: H-M 4625 User Manual

Page 6

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SECTION TSM 410 2

ISSUE

D

PAGE 6 OF 10

7. Loosen setscrews Two for G, H and HL size pumps, four

for all other sizes With spanner wrench, remove both

end caps and lip seals Remove ball bearing and spacer

collars

Refer to Figure 6.

8. Examine seal chamber lip seal and remove if it shows

wear or damage Lip seal must be removed if bracket

bushing needs to be replaced

9. Clean all parts thoroughly and examine for wear or

damage Check lip seals, ball bearing, bushing and

idler pin and replace if necessary It is often possible to

reuse the idler pin rather than replace it Note position of

the worn area at least 0 33 turn from previous position

Check all other parts for nicks, burrs, excessive wear

and replace if necessary
Wash bearings in clean solvent Blow out bearings with

compressed air Do not allow bearings to spin; turn them

slowly by hand Spinning bearings will damage race

and balls Make sure bearings are clean, then lubricate

with non-detergent SAE 30-weight oil and check for

roughness Roughness can be determined by turning

outer race by hand If bearings have roughness, replace

bearings

10. Casing can be checked for wear or damage while

mounted on bracket

11. Check flush line to be sure it is open A long wire may be

used to do this Clean or replace if it is clogged

GREASE FITTING LOCATION

NYLON INSERT

INNER END CAP

HALF ROUND RINGS

INNER SPACER COLLAR

INNER LIP SEAL

BALL BEARING

BRACKET

OUTER LIP SEAL

OUTER SPACER COLLAR

LOCKNUT

LOCKWASHER

OUTER END CAP

SETSCREWS

FIGURE 6

The seal used in this pump is simple to install and good

performance will result if care is taken during installation Seal

faces are made from silicon carbide which is extremely hard

and brittle Do not drop these parts or otherwise mishandle

as the faces can chip easily
The principle of the mechanical seal is contact between the

rotary and stationary members These parts are lapped to

a high finish and their sealing effectiveness depends on

complete contact

ASSEMBLY

Mechanical Seal

(Silicon Carbide with Viton Elastomer)

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