Gardner Denver HELIFLOW HYEL AA, Список запасных частей и руководство по эксплуатации и обслуживанию

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HF-7-602 Page 52
52. Measure backlash of the gears using a dial indicator with a magnetic base. Gear backlash is
distance (in the circumferential direction) a gear tooth can freely move when the mating gear is
fixed and should be measured in three places (every 1/3 turn). Lock idler rotor from turning by
wedging a feeler gauge or shop rag between tip of a lobe and air cylinder. Position indicator probe
perpendicular to drive gear tooth in a 3 o'clock position. Apply rotational force to drive gear in
opposite directions to obtain total backlash.
Gear backlash tolerance: .0027" min / .0040" max
53. Install shaft spacers (20) onto both rotor shafts on gear-end.
54. Install the oil slinger (23) on the gear-end of appropriate rotor shaft. For models with a fifth column
that is a G, H, J, or K, oil slingers are mounted on idler rotor. For models with a fifth column that is
an E, F, L, or M, oil slingers are mounted on drive rotor.
55. Install a bearing lock washer (25) and locknut (24) on the gear-end of both rotor shafts. Apply
Loctite 246 to locknut threads prior to screwing it onto shaft. Use locknut tool EQ144211-2 and a
torque wrench to tighten locknut. Bend one tab of lock washer into a slot in the locknut.
Torque: 85 ft-lbs
56. Install drive rotor spacer (21), idler rotor spacer (22), oil slinger (23), and bearing locknuts (24)
onto drive-end of rotor shafts. Reference step 54.
Note:
No lock washers are used with drive-end bearing locknuts.
57. Using a pump type oil can, apply AEON PD oil to all four bearings. Turn rotors to distribute oil
throughout bearings.
58. Install shaft seal (37). Verify shaft seal bore in drive-end sump cover (4) is clean, dry, and free of
nicks or burrs. Lay cover flat with external surface facing up. Support area under seal bore with a
block of wood. Position shaft seal with flat side of seal casing facing outward and cupped side
inward. Using tool EQ144211-1, drive shaft seal into sump cover until flat side of seal casing is
flush with external surface. Apply AEON PD oil to both lips of shaft seal.
59. Slide protective sleeve EQ144211-7 over drive shaft. Apply AEON PD oil to outside surface of
sleeve. Gently slide drive-end sump cover over drive shaft. Reference FIGURE 9-11.
Figure 9-11 – DRIVE-END SUMP COVER INSTALLATION
60. Attach sump cover to bearing housing using four socket head cap screws (31) in two center holes
on each long side of cover. Install and tighten remaining screws in a diametrically opposed pattern
(27).
Torque: 37 ft-lbs