Hale 80FC - Manual (Page 120)

❑ Gearbox Repair
120 Pump Ends
p/n: 029-0020-61-0
❑ Apply Loctite and install the four (4) 5/16”-18 and two 7/16”14 screws to
assemble the bell housing to the gearbox housing. Tighten screws in a
criss-cross pattern and torque 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 - “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.
6C.3 50 / 60 / 80 FBG SERIES GEARBOX
To service the “G” series gearbox and pump shaft assembly, first you must
remove the gearbox from the bell housing (flywheel) adapter, then disassemble
the pump housing.
Note: To service just the oil seal, it is not necessary to remove the gearbox and bell
housing assemblies from the engine. You must remove the pump housing to expose
the oil seal.
Pump Shaft and Shaft Oil Seal
Review heading 6c.1 “General Preparation” on page 115.
WARNING !
ALWAYS USE PROPER LIFTING AND SUPPORT APPARATUS (JACKS, HOISTS,
STRAPS, CHAIN, ETC.) WHEN SERVICING THE GEARBOX ASSEMBLY. EXER-
CISE CARE WHEN USING CHAINS TO PROTECT FINISHED SURFACES FROM
SCRATCHES.
1. Remove the six (6) 1/2”-13 screws securing the drive unit housing to the
gearbox housing. (See Figure 6c-2: “Pump Shaft Oil Seal, 50/60/80 FBG
Series, with Gearbox” on page 121.)
2. Remove the eight (8) 7/16”-14 screws securing the pump housing to the
drive unit housing.