Grundfos Peerless Pump 8196 Series, Installation, Operation And Maintenance Manual

Page: 14 / 54

2.
4852840 Page 14
II·N. INSTALLATION FALK STEELFLEX
®
SPACER COUPLINGS
PARTS IDENTIFICATI ON - All coupling parts have identifying part numbers as shown above. Parts are interchangeable between the 10 Series and 1000 series
spacer couplings. However, to utilize the higher 1000 series ratings, the l000T - Blue Grid, Spacer Hubs, Shaft Hubs and Hardware must be used. When ordering
parts, always SPECIFY SIZE and TYPE shown on the COVER. Sizes 80 thru 140T10 covers have been manufactured with two and three ribs; 00 NOT mix these
cover halves.
LIMITED END FLOAT - When electric motors, generators, engines, compressors and other machines are fitted with sleeve or straight roller bearings, limited
axial end float kits are recommended for protecting the bearings. Falk Steelflex couplings are easily modified to limit end float; refer to Manual 428-820 for
instructions.
CAUTION: Remove the coupling cover, grid and gap disc before removing the Spacer T Hub(s) of limited end float couplings. Reassemble as
instructed on Page 2.
LUBE FITTINGS - Cover halves have 1/8 NPT lube holes. Use a standard grease gun and lube fitting as instructed in Step 8 on Page 2.
LUBRICATION - Adequate lubrication is essential for proper operation of the coupling. Refer to Table 1 on Page 2 for the amount of lubricant required. It is
recommended that the coupling be checked once a year and lubricant added if required. For extreme or unusual operating conditions,
check more frequently.
.
CAUTION: Consult applicable local and national safety codes for proper guarding of rotating members. Observe all safety rules when installing or servicing
couplings.
LUBRICATION SPECIFICATIONS - Refer to Manual 428-010 for recommended lubricants. The following specifications apply to lubricants for Falk couplings
which are lubricated annually and operate within ambient temperatures of 0· to l50
o
·F. (-18
o
· to
+
66
o
C.). For temperatures beyond this range, consult the Factory.
Dropping Pint· 300
o
F. (149
o
C.) or higher.
Consistency" NLGI No.2 with worked penetration value in the range of 250 to 300.
Separation and Resistance" Low oil separation rate and high resistance to separation from centrifuging.
Liquid Constituent - To possess good lubrication properties ... equivalent to a high quality, well refined petroleum oil. Inactive"
Must not corrode steel or cause swelling or deterioration of synthetic seals.
Clean - Free from foreign inclusions.
Semi-Permanent Lubrication" Refer to Manual 428-012 for details.
INSTALLATION · Only standard mechanics tools, wrenches, a straight edge' and feeler gauges are required to Install Falk Steelflex couplings. Couplings Sizes
1020 thru 1090 are generally furnished for CLEARANCE FIT with set screws. Sizes 1100 and larger are furnished for an INTERFERENCE FIT without set screws.
Heat hubs with interference fit in an oil bath to a maximum of 275
o
F. (135
o
C.) to mount. The oil flashpoint must be 275
o
·F. (135
o
C.)or higher. Refer to Page 2 for
detailed mounting instructions.
REMOVAL AND INSTALLATION OF SPACER ASSEMBLY (SEE LIMITED END FLOAT "CAUTION")
REMOVE SPACER ASSEMBLY - Remove pipe plugs and all but two fasteners opposite each other in each hub. Loosen these about one-quarter inch and tap
them with a mallet to disengage Steelflex Spacer from the shaft hubs. Remove fasteners and Spacer.
INSERT SPACER ASSEMBLY - Do not allow them to protrude beyond flange face. Compress spacer to eliminate its gap, and insert into space between shaft
hubs. Carefully engage the hub registers and then alternately tighten fasteners. Torque to specifications in Step 2 on Page 2.
INTRODUCTION - This manual applies to Sizes 20 through 140T31 and 1020 thru 1140T35 Falk Stee1fIex Tapered Grid Spacer Couplings. Unless otherwise
stated, information for Sizes 1020 thru 1140 applies to Sizes 20 through 140 respectively, e.g. 1020 = 20, 1100 = 100, etc. The type T31 Steelflex Spacer Assembly
permits installation or removal (as shown in Steps A and B below) without disturbing either the driving or driven unit. These couplings are designed to operate in
either the horizontal or vertical position without modification. However, for vertical applications, the match mark shown on Page 2, must be up. The performance
and life of the couplings depend largely upon how you install and service them. Carefully follow the instructions in this manual for optimum performance and
trouble free service.