Hale 80FC - Manual (Page 122)

❑ Gearbox Repair
122 Pump Ends
p/n: 029-0020-61-0
Installation Notes – Pump Shaft and Seal, 50/60/80 FBG
❑ Review heading 6c.1 “General Preparation” on page 115.
❑ Make sure a new oil seal (Hale p/n: 296-2090-00-0) is installed into the
pump housing. Apply a coating of general-purpose grease to the seal to
ease installation. (See Figure 6c-2: “Pump Shaft Oil Seal, 50/60/80 FBG
Series, with Gearbox” on page 121.)
❑ Make sure all bearings are properly seated either within the pump housing or
on the pump shaft - see Figure 6c-2: “Pump Shaft Oil Seal, 50/60/80 FBG
Series, with Gearbox” on page 121. Also assure the shim is installed
between the two front (pump side) bearings.
❑ Replace all gaskets. Apply a small amount of grease to the gasket(s).
❑ Install the drive unit housing, then the pump housing. Carefully slide the
pump shaft assembly into place as the pump housing is installed.
❑ Apply Loctite and install the six (6) 1/2”-13 and eight (8) 7/16”14 screws to
assemble the drive unit housing to the gearbox housing and the pump hous-
ing to the drive unit and gearbox housings.
Tighten screws in a criss-cross pattern and torque accordingly - see Table 6-
1: “Typical Torque Values Chart” on page 79.
❑ If the gearbox includes a water cooler, install a new gasket and the water
manifold, using the twelve (12) 5/16”-18 screws and washers. Using Loctite
PST or equivalent thread sealant, install bushings, extensions and elbows in
the water manifold, as required.
If a cooler is not included, install the gearbox cover, gasket and twelve (12) 5/
16”-18 screws and washers.
Torque screws accordingly - see Table 6-1: “Typical Torque Values Chart” on
page 79.
❑ Install a “new” mechanical seal - see heading see heading “Installing Seal”
on page 112.
❑ Install the impeller, see heading “Installation Notes – Impeller” on page 96.
❑ Install the volute - see heading “Installation Notes – Volute (Pump Body)” on
page 93.
Also install the suction flange, if included - see heading “Installation Notes –
Suction Flange” on page 91.
❑ Set up apparatus for pumping and test pump. Check for leaks at the piping
and seal areas before returning apparatus to operation.