
JOHNSON CONTROLS
45
SECTION 5 - REPLACEMENT PARTS AND KITS
FORM 50.40-OM1 (713)
ISSUE DATE: 07/17/2013
5
REFERENCE
NUMBER
PART NAME
QUANTITY
PART
NUMBER
48
Pressure Rls. Tube Number 2
1
41-1005
49
Steel Ball 3/8 Dia.
1
4-40-1200
50
Pressure Release Valve
1
41-0992
51
Hex Hd. Cap Screw, 5/16 – 18 x 1/4
6
2-01-0320
52
Pressure Rls. Tube Number 1
1
41-0986
53
Sheet Metal Screw Number 6 x 1/4
3
2-03-3104
54
Thrust Disk
1
41-1766
55
End Cap
1
41-0672
*Oil Case Assembly (61-417D) includes oil case, drain valve and level window.
REPAIRING OIL LEAKS
Location, Cause and Effect
Oil leaks may develop wherever two mating faces are
sealed with a gasket. Such seams may fail as the result
of deterioration of the gasket material, loosening of the
screws caused by temperature variations, or improper
care as the result of previous reassembly. Typical gas-
keted seams in a vacuum pump are located at the shaft
seal and the mating faces of such mechanical surfaces
as the suction chamber cover, the oil case, and the dis-
charge chamber cover. The importance of a gasketed
seam is determined principally by its function. If it is
a vacuum seal, the ultimate performance of the pump
is dependent upon it. If it is an oil seal, the pump may
be operated satisfactorily for some time without loss of
function. Eventually, of course, a great loss of oil may
cause harmful damage.
Repairing Technique
Thin composition gaskets are generally used for large
irregu larly shaped areas. A replacement joint of this
type should be thoroughly cleaned of all previous gas-
ket material and the mating surfaces cleaned of any
nicks.
REPAIRING VACUUM LEAKS
Good vacuum seals are an essential and important at-
tribute of a vacuum pump. A good seal is dependent
upon the quality of the mating surfaces as well as the
sealant and its preparation. The mating faces should be
carefully inspected for any projections or foreign par-
ticles which might interfere with proper mating. Slight
projections such as nicks and burrs are most easily re-
moved by rubbing with a fine abrasive stone. The sur-
face of the mating parts may be washed with a solvent
or alcohol after which they must be thoroughly dried.
TABLE 22
- VACUUM PUMP REPLACEMENT PARTS – MODEL CRR-1 (CONT'D)
Содержание YORK EASYTANK LD17584
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