SITE INFORMATION AND CORRESPONDENCE

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Disassembly of Blower 1. Drain lubricant from both ends of blower by removing magnetic drain plugs (31). oR,«'!/Zou. TAP v/l-KVNP 2. Remove inlet and outlet port fittings (38). ' /,;.,•SLOT SNAP-ON P/N CJ53-3 1TMau, � Model 3202 does not have port fittings. OR @OVV►IeNT. % 3. On 64167 series only, remove spanner —*K SQ I P/N CJ64-IS•3 lock nut (83), dust washer (82), screws (93), and seal adapter housing (91). Tap , out seal 76) and discard O rings (92 & 140). Remove spacers (77 and 74), adjus- ting shim (118) and discard O ring (75). 4. Remove cap screws (26A & 268) and both end covers (6 & 7). Use sharp chisel and hammer for gear end cover (6) unless jack screw holes have been FIGURE 5 provided. 5. Remove lockwire (49), socket head screws (66), and drive shaft (45). Using puller remove bearing (9 or 50). 6. Remove flat head allen screws (29) from each rotor shaft. Remove washers (25), spacers (57), and oil slinger (21). of the housing. Place the rotor hous- Note: The flat head screws have nylok ing back over the rotors. in their threads and may be dif- c. Set the unit on the support blocks ficult to remove. Strike the head with the gears pointing upward. Do a couple of blows with a flat face not extend blocks into the rotor hammer for easy removal. bores. The rotors may now be press- 7. Mark housing, end plates, rotors, and ed from the gear end plate. Do not gears before proceeding with damage rotors. disassembly. There are two methods which can be Method B.: used to disassemble the rest of the unit. a. Align timing marks on gears (Figure Method "A" requires an arbor press and 6A). Rotate drive gear clockwise. method "B" requires the use of bar or approximately three teeth and mark yoke pullers. See Figure 5. a matching reference line on each 8. Method A: gear as shown in Figure 6B.This gear a. Place two support blocks, 51/2 to 6 position is necessary so .rotors will inches high (hard wood or steel), on clear and not jam. Do not allow the the bed of an arbor press. Set the gears to move from the- matched unit, with the gears pointing down, on reference line while pulling. Use a the two blocks making sure the light rocking motion to insure that the blocks support the rotor housing lobes have not jammed: Remove only. Press both rotors out of free end driven gear first then drive gear. bearings simultaneously. WARNING: Failure to properly pull b. Lift the housing off the rotors and this gear could result in damage to remove the nondrive end plate (4) by rotor keyway or a bent rotor shaft. tapping the end plate from the inside Never use excessive force.