6. Maintenance
21
Read the instructions carefully. The items refer to the parts list and service kits section.
6.5
Reassembly
General Notes
All parts must be cleaned thoroughly before reassembling. Any deposits remaining on the parts can cause difficult disassembly
the next time the Alfa Laval Gamajet needs servicing.
Apply a dab of a Teflon-based anti-seize compound, except when otherwise noted, to all threads when reassembling; this will
prevent galling of threads and ease any future disassembly.
Whenever lubrication of O-rings is required for assembly, lithium-based soap grease (Calypsol SF 3-097) is acceptable, for
Viton
, Zalak
, and Kalrez
O-rings. Silicon based grease
MUST
be used for EP O-rings. In either case food grade grease
may be used.
Refer to previous illustrations or the exploded views in section 8 for clarification during reassembly.
Drawing 18, 19
Stem
Turn to (drawing 18): Place (17) back onto the Stem (3). If the machine is pin drive, the slot in the (17) should line up with the
Drive Pin (59) in the (3). Slide the first Tee Housing Bearing (29), flange down, onto (3).
Turn to (drawing 19): Align the Bearing Locating Pin (58) with the hole in underside of (29). Ensure that the flange of (29) is
flush with (17). Slide the first Tee Housing Seal (31), spring up, onto (3). Ensure that this tight against (29).
Drawing 16, 17, 18, 19
Tee Assembly
Turn to (drawing 18): Push the Tee Housing (4) over the Stem (3) until it is fully seated.
Place the second Tee Housing Seal (31), spring side down, over (3).
Tip:
First, Place the second Tee Housing Bearing (29) into (28), aligning its hole with the Bearing Locating Pin (58). Now, invert
the (4)/ (3) assembly and place it over (29)/ (28) assembly. This technique ensures correct alignment of (29) and (58). Turn to
(drawing 17): Apply pressure to (28) to drive it, (29), and (31) into (4).
Align the through holes of (28) with the threaded holes in the top of the (3). Screw the four SHCS (41) with their Lockwashers
(42) into place using a 5/32" Hex Key, tightening them in a star pattern.
Turn to (drawing 19): Insert the Ring Gear (19) into (4), being sure to align the key and keyway of the two components.
Reinstall the Ring Gear Retaining Ring (20).
Drawing 10, 11, 12, 13
Nozzle Housing
Turn to (drawing 12): Place the first Housing Bearing (29) onto the nose of the Tee Housing (4). Ensure that the Bearing
Locating Pin (58) and hole in back of (29) are aligned.
Place the first Housing Seal (31), spring side out, onto the nose of the (4).
Turn to (drawing 13): Using an open-end wrench, screw the Nozzles (7) into the Nozzle Housing (5).
Push (5) assembly onto the nose of (4). Ensure that the Bevel Gears mesh properly.
Place the second Housing Seal (31), spring side in, over the nose of (4).
Turn to (drawing 13): Place the second (29) into the Name Plate (6), aligning (58) with the hole in back of (29).
Turn to (drawing 10): Push the two parts ((29) and (6)) over the nose of (4), driving (31) into (5). Align the through hole of (6)
with the threaded holes of (4).
With their Lockwashers (47), thread the Name Plate Screws (46) into the nose of (4). Tighten with a 5/16" socket.
