Finn HydroSeeder TITAN280, Operator Instructions And Parts Manual

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35
2. To remove impeller (3), loosen and remove the two victaulic clamps and remove the discharge
pipe. Remove twelve bolts (17) that hold pump casing (1) in place. Exercise caution while re-
moving the pump casing (1) because it is heavy (approximately 150 lb [68 kg]) and the O-ring
(5) can easily be damaged.
3. Lock the shaft (19) in place with a pipe wrench. Using a block of wood as a transfer, hammer
at the edge of the impeller vane to turn the Impeller (3) counterclockwise. Once the impeller
is free, it can be turned by hand. Be careful not to drop it as it fully disengages from the shaft
threads.
CAUTION
Do not turn the shaft backward with a pipe wrench. This will unscrew pump impeller from pump
shaft. Consequently, when clutch is engaged (turned on), the pump impeller will screw onto
pump shaft with a force great enough to break pump impeller. Failure to comply could result in
minor or moderate personal injury. Failure to comply could also result in product or property
damage.
D. INSTALLING NEW SEAL ASSEMBLY (9)
(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 clump shaft seal assembly (4), perform the operations under CLEANING
on page 34.
2. After cleaning all parts, including clump shaft (19), begin reassembly of clump. Using a light oil
lubricant (such as 3-in-1 oil), install the ceramic seat, making sure that the notch on the ceramic
seal is lined up with the pin at the bottom of the clump mounting plate (12). Lubricate inside of
the bellows assembly with a light oil lubricant and check to make sure the steel ring is stuck
(glued) to end of assembly. Slide bellows assembly onto the shaft and push until steel ring is
against ceramic seat.
3. Install the seal spring on the hub of impeller. After coating the threads on the clump shaft (19)
with an antiseize compound, install impeller (3), seating it securely.
4. Utilizing O-ring (5), reinstall pump casing (1) using twelve bolts (17). At this time, check to see
that the clump runs freely. If impeller (3) rubs cover plate, you do not have impeller tight on
clump shaft (19) or pump casing (1) needs to be readjusted. See IMPELLER CLEARANCE on
page 34. Tighten bolts uniformly using 15 lb-ft (20 N•m) on the torque wrench.
5. After reinstalling the suction pipe assembly, lubricate and tighten the victaulic clamps. Service
the automatic lubricator.