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Portable Generator Familiarization & Troubleshooting Guide Section 4 • Generator Assemblies • Continue tapping all the flanges on the housing until it comes free from the engine adapter. • Carefully remove the stator housing. Once the housing is removed, the rotor assembly will be exposed (Figure 4.58). Figure 4.59 — Rotor Bearing Snap-Ring Figure 4.58 — Exposed Rotor Assembly Rotor Retention Bolt Installing The Rotor • Place the rotor on the tapered drive shaft. (There is no concern for timing the rotor to the engine.) • Insert the rotor retention bolt and torque to the specifications found in the appendix of this guide. NOTE: If you were unable to get satisfactory electrical measurements earlier, it is recommended that you take your rotor measurements now as this might save you the time in removing the rotor needlessly. Removing The Rotor The procedure for removing the rotor is the same as described for the Generac® wound generators. Please refer to page 98 “Removing the Rotor” for these steps. Mounting The Stator Housing • Carefully place the stator housing over the rotor and align the mounting studs (or holes) with the engine adapter (Figure 4.60). Figure 4.60 — Aligning The Stator Housing Assembly NOTE: The rotor bearing is secured to the end of the shaft by means of an external snap-ring (Figure 4.59).The bearing need not be removed from the rotor unless of an obvious failure or for rotor replacement. Inspect for any loose debris, obstructions or flaws on the engine adaptor, stator laminations, rear bearing carrier, the threaded hole in the tapered shaft and the surface of the mating surface of the rotor before proceeding with the rotor installation. • Be sure that the rotor bearing slips into its encasement on the stator housing. 112
Portable Generator Familiarization & Troubleshooting Guide Section 4 • Generator Assemblies • Secure the stator housing with the studs and nuts you retained from disassembly (Figure 4.61). Figure 4.61 — Secure Stator Housing • Reinstall the grounding wire as shown in Figure 4.63. Figure 4.63 — Install Grounding Wire • Torque the mounting studs and nuts to specifications found in the appendix of this guide. • Remove the spark plug wire and pull engine recoil to ensure no binding or obstructions. • Install the fan guards as shown (Figure 4.62). Figure 4.62 — Install The Fan Grills • Remove the supporting blocks and seat the isolation mount studs through their holes in the cradle frame. • Install the nuts you retained from disassembly and torque to specifications found in the appendix of this guide (Figure 4.64). Figure 4.64 — Isolation Mounts 113
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Portable Generator Familiarization
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GENERATOR

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