HEADER OPERATION – A SERIES
Form # 169304
88
Model Year - 2009
APPROX KNIFE DRIVE FLOW AT VARIOUS ADJUSTMENTS
SCREW
ROTATIONS
FROM FULL
OUT
LENGTH OF
SCREW
FROM JAM
NUT
(inch (mm))
PUMP
DISPLACEMENT
(cu. in. (cc))
% OF MAX
DISPLACEMENT
FLOW AT 2600
RPM
(gpm (L/min))
FLOW AT 2400
RPM
(gpm L/min))
0
0.71 (18)
3.0 (49.2)
100
32.8 (124.2)
30.2 (114.3)
1
0.67 (17)
2.82 (46.2)
94.0
30.8 (116.6)
28.4 (107.5)
2
0.63 (16)
2.65 (43.4)
88.4
28.9 (109.4)
26.7 (101.1)
3
0.59 (15)
2.49 (40.8)
83.1
27.2 (103.0)
25.1 (95.0)
4
0.55 (14)
2.34 (38.3)
78.1
25.6 (96.9)
23.6 (89.3)
5
0.51 (13)
2.20 (36.1)
73.4
24.0 (90.8)
22.2 (84.0)
6
0.47 (12)
2.07 (33.9)
69.0
22.6 (85.6)
20.9 (79.1)
7
0.43 (11)
1.95 (32.0)
64.8
21.2 (80.2)
19.6 (74.2)
8
0.39 (10)
1.83 (30.0)
61.0
20.0 (75.7)
18.4 (69.7)
9
0.35 (9)
1.72 (28.2)
57.3
18.8 (71.2)
17.3 (65.5)
10
0.31 (8)
1.62 (26.6)
53.9
17.6 (66.6)
16.3 (61.7)
11
0.24 (6)
1.52 (24.9)
50.6
16.6 (62.8)
15.3 (57.9)
12
0.20 (5)
1.43 (23.4)
47.6
15.6 (59.1)
14.4 (54.5)
13
0.16 (4)
1.34 (22.0)
44.7
14.7 (55.6)
13.5 (51.1)
14
0.12 (3)
1.26 (20.6)
42.1
13.8 (52.2)
12.7 (48.1)
NOTE: Flow of 27.5 +/- 1.5 gpm is equivalent to knife speed of 1950 +50/-0 strokes per minute.