Finn HydroSeeder T120GN, Руководство оператора

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PUMP MAINTENANCE SECTION:
(Reference Figures 5 and 6)
CAUTION: Pump maintenance to be done only while engine is not run
-
ning, and battery cables are disconnected.
A. FACTORY-TOLERANCES.
1. To check pump tolerances loosen the two clamps on the pump suction piping and remove the inlet elbow.
Through the pump suction hole, insert a feeler gauge between the pump impeller (3) and the suction
cover (1). This measurement on a new pump is between .040-.045 of an inch (1.00-1.15 mm).
B. IMPELLER CLEARANCE -
To bring the pump back to proper tolerance, proceed as follows:
1. Push suction cover (1) into casing (5) until suction cover hits impeller (3). Impeller should be in full
contact with suction cover.
2. Tighten cap screws (5B) finger tight. Impeller should rub the suction cover and not turn easily through
one revolution.
3. Tighten cap screws (1B) to 15 lb. ft.(165 kg/m). Impeller should turn freely through one revolution.
4. Back off cap screws (5B) 1-1/2 turn.
5. Tighten cap screws (1B) 1-1/2 turn and tighten nuts (1N) to 15 lb.ft.(165 kg/m).
6. Tighten cap screws (5B) to 15 lb. ft. clearance gap should be about .040 inches (1.00 mm). Check to see
if impeller turns freely through one revolution.
NOTE: Tightening of the cap screws should be in a criss-cross pattern. DO
NOT TIGHTEN TO OVER 15 LB. FT. (2.07 kg/m). Doing so can crack
the flange of the suction cover.
1
2
3
1B
1N
5B
5W
5
4 6 7
41
8 9 9A
41
10A
11
20
15
16
17
39
38
37
34
30
31
29
27
28
26
10 14 13 12 9B 10B
7B
7LW
40
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Figure 9 - Cross-Section Through Clump