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Service manual

ManualsBrandsColfax ManualsPower PumpCIG Mechanical Seal
891011121314151617
12
CAUTION
ATTENTION
If gears are installed in wrong housing, pump may not perform properly or may seize during
operation. This is because gears are matched to each housing individually and may not
have
correct clearances if installed in another housing. If gears are installed facing wrong direction,
pump may not perform properly or may seize during operation. This is because some gears
have chamfers on only one side. These chamfers must be positioned facing inside of housing
so that there will be no interference with housing radii.
36. Install O-ring (41) on last stage gear housing (4).
37. Install dowel pin (37) in back of previous stage round housing (3).
38. Install last stage square gear housing (4), with installed ring gear (12), onto shaft (6). Ensure dowel pin (37)
engages dowel pin hole in back face of previous stage round housing (3) and pinion gear (11) installed on shaft (6)
is properly positioned to enter gear housing (4).
39. Install washers (34) on capscrews (39) with chamfer on washers (34) facing head of capscrews (39).
Install capscrews (39), with washers (34) installed, and tighten with torque wrench to torque values on assembly
drawing. Torque one-half value for all capscrews first, then torque to full specified torque value. Capscrew
tightening pattern should be across opposite corners for both half torque and full torque tightening.
CAUTION
ATTENTION
With capscrews (30) torqued to full value, pump shaft must turn freely by hand and without
significant internal snagging. Otherwise, unit has not been properly assembled.
40. Install O-ring (35) into rear cover (15). If necessary, use grease to hold O-ring (35) in place.
41. Install end cover (15) on square gear housing (4) using capscrews (38). Tighten capscrews (39) with torque
wrench to torque values on assembly drawing.
42. Install coupling key (36) in keyway of shaft (6).
CAUTION
ATTENTION
Take care not to bump shaft during storage, transportation, or installation of pump into
operating system.
L. TROUBLESHOOTING
For assistance with troubleshooting, see General Instruction Manual CA-1.