Finn HydroSeeder T120GN, Руководство оператора

Страница: 33 / 87

27
C. CLEANING.
1. To clean pump impeller (3), loosen the two victaulic pipe clamps and remove the suction pipe assembly.
The eye of the impeller can then be seen through the suction cover plate (1) and is readily accessible
for cleaning.
2. To remove impeller, remove the eight bolts (5B) holding the suction cover (1) in place. Remove suction
cover, being careful not to damage the O-Ring gasket (2).
3. Take the impeller wrench, which is stored in the toolbox, and position it so that the hole is aligned with
any of the eight tapped holes in the front of the pump casing (5). The 90˚ leg of the wrench should face
in towards the impeller and be positioned between any two of the impeller fins. Bolt the wrench securely
in place with one of the suction cover bolts (5B). Using a pipe wrench on the shaft (11), unscrew the
impeller turning the shaft in a clockwise direction. Be careful not to unscrew the impeller too far before
removing the puller wrench.
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 hous-
ing 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 auto-
matic lubricator.
CLUTCH MAINTENANCE SECTION:
(REFERENCE FIGURES 8 AND 9)
CAUTION: Clutch maintenance to be done only while engine is not run
-
ning, 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.