Alfa Laval GJ 7, Инструкция по эксплуатации

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6. Maintenance
18
Read the instructions carefully. The items refer to the parts list and service kits section.
6.4 Inspection and Service of Components
Drawing 16
Stator
Inspect the openings at the top and the veins of the Stator (9) to be sure that they are clear and free of debris.
Drawing 12, 14
Base Assembly
Inspect the Output Pinion (11) and Idler Gear (16) for worn, damaged, or sharp/pointed teeth.
Check for signs of scoring on the Idler Shafts (15).
Examine the Idler Gear Bushings (31) on the Idler Gears and the Idler Shaft Bushing (33) on the Base for signs of wear. The
inside diameter of the (31) Bushings should not exceed 0.110" (2.8 mm). This can be measured with a plug gauge or a #35 drill
bit. The inside diameter of the (33)
should not exceed 0.103” (2.6 mm). If Bushings need to be replaced, remove them with a
small slotted screwdriver or razor blade, and then push replacements back into place.
Drawing 14
Stem Cap
Inspect the Small and Large Stem Cap O-rings (47 and 48), for deterioration (hardening or deformation) or damage and
replace if necessary.
Drawing 7
Gear Train Assembly
General Disassembly and Inspection
Unscrew the Nut (43)
with a 3/16” (4.76 mm) socket and remove it with the Lockwasher (42) from the Input Shaft (22).
Remove the Rotor (10) from (22). Use a slotted screwdriver for assistance.
Remove the input assembly by pulling and twisting on the Rotor Shaft Bearing Housing (57) while pushing down on the tip of
(22) with your index finger to keep it in place. This is done to prevent the accidental disassembly of the Gearhead, (26) (inside
of (8)). A thin spacer from the Gearhead may stick to the underside of the input assembly. If it does, remove it and place it back
on the top of the Gearhead.
Pull and twist the Output Shaft Seal Housing (14) from the Gearhead Housing (8).
Loosen the Output Shaft Set Screw (39)
with a 0.050” (1.27 mm) Hex Key. Pull Output Shaft (12) from the Gearhead assembly.
If liquid is found in the gearhead, a careful and thorough inspection should be made of the (8), (12), (57), (14), (22), (23), (24),
(27), (49), and (54). If scratched or worn, they will present a possible leak path into the gearhead.
Drawing 3, 7
Gearhead & Rotor Shaft Assembly
Inspect the Output Shaft (12) for signs of scoring and wear, especially in the area of (24) contact. Replace if worn.
Using a small slotted screwdriver, ensure that the Gearhead Screws (46) are tight.
WARNING: If you suspect that the Gearhead (26) requires service, proceed with caution. If at any time you do not feel
completely comfortable servicing (26), contact Alfa Laval Tank Equipment Inc. immediately. To eliminate losing the
small internal components, service (26) over a small tray or container. Refer to Section 6.2 for more information.
Using a needle nose pliers carefully remove the internal components of the (26). Examine the gears of the three different
stages for any worn or broken teeth. Also, examine the main internal ring gear for bent or sharp teeth. If any damage is foun d
contact Alfa Laval Tank Equipment Inc
. immediately. Please note, the gears, at the mid and lower level are interchangeable.