Finn HydroSeeder T120, Parts And Operator'S Manual

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D. INSTALLING NEW SEAL ASSEMBLY (#4)
(Do not unwrap the new seal assembly until you
are ready to install. All parts of the assembly are packed in sequence of installation.)
1. To replace the seal assembly (4), perform the above operations under cleaning and remove pump
casing (5) by removing the three bolts (10B) holding the casing to the clutch housing (10).
2. After cleaning all parts including pump shaft, begin the reassembly of the pump. Install seal grease
retainer (6) with the cavity portion of the seal facing outward. Rebolt the casing onto the clutch
housing using the three cap screw (10B). Using a light oil lubricant (3 in 1), install the ceramic seat
with its neoprene holder into the seal recess making sure it is square with the shaft. Lubricate the
inside of the bellows assembly with a light oil and check to be sure the steel ring is stuck (glued) to
the end of the assembly. Slide the bellows assembly onto the shaft and push till the steel ring is
against the ceramic seat.
3. Install the seal spring on the hub of the impeller. After coating the threads on the pump shaft with
an anti-seize compound, install the impeller - seating it securely.
4. Utilizing the rubber O-Ring gasket (2) reinstall suction cover using the eight cover bolts (5B). At
this time, check to see that the pump runs freely. If the impeller rubs the cover plate, you do not
have the impeller tight on the shaft or the cover plate needs readjustment - see “impeller clearance”.
Tighten these bolts uniformly using 15 ft. pounds (2.07 kg/m) on the torque wrench.
5. After reinstalling the suction pipe assembly, lubricate and tighten the victaulic clamps. Service the
automatic lubricator.
CLUTCH MAINTENANCE SECTION: (Reference Figures 5 and 6)
CAUTION: Clutch maintenance to be done only while engine is not
running, and battery cables are disconnected.
A. ADJUSTMENT -
If the clutch does not pull, overheats, or the clutch operating lever jumps out, the
clutch must be adjusted. Proceed as follows:
1. Remove the hand hole nameplate (10A) in the housing (10) and rotate the clutch until the adjusting
lock collar and lock screw (28) can be reached. Remove or disengage the adjusting lock (28) being
careful not to drop it into the housing.
2. Turn the adjusting ring (27) counter clockwise to obtain recommended operating lever pressure.
HANDLE PRESSURE:
Variation in handle length directly affects the pressure required at the handle for proper
clutch adjustment. See the table below to determine the correct handle pressure.
Reference Pressure
Clutch Size Handle Length at Lever
7-1/2” 7-5/8” 110-130#
IMPORTANT:
A new clutch generally requires several adjustments until the
friction surfaces are worn in. Do not let a clutch slip as this will
glaze the friction plates and may ruin them.
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