Jacobsen 67991, Руководство по обслуживанию

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ADJUSTMENTS 3
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3.3 BEDKNIFE ADJUSTMENT ___________________________________________________
1. Read Section 3.2 before making the adjustment.
2. Start adjustment at the leading end of the reel,
followed by the trailing end. The leading end of the
reel blades is that end which passes over the
bedknife first during normal reel rotation.
3. Use adjusters (B and C), to adjust gap. Rotate
adjusters (Clockwise) to close gap. Each click of the
adjuster moves the bedknife 0.001” (0.025 mm)
closer to the reel.
a. Slide a feeler gauge or shim stock 0.001” -
0.003” (0.025 - 0.075 mm) between the reel
blade and the bedknife. Do not turn the reel.
b. Adjust the trailing end of the reel to the same
gap in a similar manner then recheck the
adjustment at the leading end.
c. When the reel is properly adjusted to the
bedknife, the reel will spin freely and you should
be able to cut a piece of newspaper, along the
full length of the reel, when the paper is held at
90° to the bedknife.
Figure 3C
3.4 CUTTING HEIGHT _________________________________________________________
Note: Always make the reel-to-bedknife adjustment before
adjusting height of cut, Section 3.2 and 3.3.
1. Raise mowers to transport position, engage the parking
brake, stop engine, and remove key from ignition
switch.
2. Set desired cutting height on the gauge (I).
a. Measure distance between underside of screw
head and gauge block surface (
J).
b. Adjust screw
(F) to obtain desired height then
tighten the wing nut.
3. Loosen the hardware on the front roller brackets (E)
just enough to allow the adjuster to raise or lower the
roller.
4. Place gauge (I) across bottom of front and rear rollers
near one end of roller.
5. Slide the head of gauge screw over the bedknife (G)
and adjust the hand knob (H) to close the gap between
the screwhead and bedknife.
Tighten locknut (E). Repeat Steps 4 and 5 on opposite
end. Complete adjustment to one end before adjusting
opposite end.
6. Tighten hardware and recheck each end.
Figure 3D
NOTICE
Avoid excessive tightening or serious damage may
result to bedknife and reel blades. Reels must turn
freely.
B
C
J
E
F
G
H
I