HF-7-602 Page 46
6. Install mechanical seals.
6a. Place drive-end bearing housing (4) in a horizontal position in a hydraulic press with air side
surface facing down.
6b. Place spring loaded carbon half of mechanical seal assembly (43) in one of the bearing
housing bores with the carbon facing up. Reference Figure 9-3.
Note
: Handle with care! Scratching or chipping the carbon sealing face may cause seal to
leak!
Figure 9-3 – MECHANICAL SEAL INSTALLATION
6c. Using driver tool EQ144211-9, press insert into bearing housing until seated.
7. Repeat step 6 for remaining mechanical seals.
8. Attach mounting bracket to inlet port of air cylinder (1) and mount air cylinder on trunnion.
9. Determine drive shaft (long rotor) location and rotational direction from blower model designation.
Refer to arrows cast into air cylinder to determine air flow direction.
10. Position air cylinder vertically with drive-end up.
11. Install two dowel pins (34) into drive-end of air cylinder.
12. Orient bearing housing so dowel holes align with dowels in air cylinder and mount drive-end
bearing housing to air cylinder.
13. Fasten drive-end bearing housing to air cylinder using two socket head bolts (29) in counter bored
holes in bearing housing. Tighten bolts.
Torque: 40 ft-lbs
14. Rotate air cylinder vertically so drive-end is down. Verify adequate clearance for rotor shafts to
extend through bearing housing.
15. Thread 3/4-10 eye bolt into gear-end of drive rotor shaft. Using a hoist, carefully install drive rotor
into air cylinder, verifying long end of drive rotor shaft extends through drive-end bearing housing.
Verify it is in correct bore by matching rotor rotation to arrows cast in cylinder. Verify rotor lobe
helix angle matches triangular shape of discharge port.
16. Thread 3/4-10 eye bolt into gear-end of non-drive rotor shaft. Using a hoist, carefully install non-
drive rotor into air cylinder. Orient both rotors to eliminate interference between mechanical seal
sleeve of drive rotor and lobe of non-drive rotor. Reference FIGURE 9-4.
Summary of Contents for Industrial Series
Page 27: ...HF 7 602 Page 26 Figure 5 5 FALSE BEARING EQ144211 5...
Page 29: ...HF 7 602 Page 28 Figure 5 8 HAND CRANK EQ144211 8...
Page 30: ...HF 7 602 Page 29 Figure 5 9 MECHANICAL SEAL DRIVER EQ144211 9...
Page 31: ...HF 7 602 Page 30 Figure 5 10 FALSE BEARING SPACER EQ144211 10...
Page 44: ...HF 7 602 Page 43 SECTION 8 PARTS LIST HYEL_AA 300HYE810 D Ref Drawing...
Page 55: ...HF 7 602 Page 54 SECTION 10 PARTS LIST HYEL_AB 301HYE810 B Ref Drawing...
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