Backlapping And Grinding - Jacobsen Eclipse 118 63313 Technical Manual

11.4 BACKLAPPING AND GRINDING ______________________________________________

Check for damage to the bedknife and reel blades.
Refer to (Section 6.2).
1. Determine if backlapping or grinding will restore the
proper cutting edge.
2. For optimum performance use a bedknife grinder to
touch-up the blade then reassemble and adjust the
bedknife to the reel as described in (Section 6.2).
3. Start unit in backlap mode.
a. Turn key (D) to start position and release. Press
both orange buttons (G and H) when Jacobsen
Version X.XX is on the display (A). Use the
orange buttons (G or H) to select and the black
button (F) to enter the four digits for the
Superintendents mode pin. [Section 4.3]
b. Place reel switch (E) in backlap position.
BACKLAP YES NO screen will display. Select
YES to backlap. If NO is selected, TURN
BACKLAP SWITCH OFF will be displayed.
c. Engage O.P.C. bail (C) and release. Reel motor
will begin turning, a slow beeping (1 every three
seconds) alarm will sound and a five minute
timer will start.
d. Adjust reel speed between 10% and 100% using
the orange buttons (G or H).
e. Apply lapping compound with a long handle
brush along the entire length of the reel, (180 grit
is recommended, Section 2.7).
f. Continue lapping and at the same time make a
fine adjustment on the reel and bedknife until
there is a uniform clearance along the full length
of the cutting edges.
g. Exit backlap mode by allowing the five minute
timer to end, placing reel switch (E) in the OFF
position, moving the O.P.C. bail (C) or moving
the thumb lever (B).
h. Turn key switch (D) to off position.
4. Carefully and thoroughly
compound from reel and bedknife before running
the reel in forward direction.
remove all lapping
MAINTENANCE
C
E
G
Standard start up
screen
VERSION X.XX
Press both orange
buttons during
ENTER PIN?
start screen.
Enter PIN
Place Reel Switch
in Backlap position.
Select yes or no.
Engage Bail and
ENGAGE BAIL
release to start
AND RELEASE
backlapping
Display timer and
BACKLAP 5 MIN
adjust backlap
<
reel speed
Exit backlap
TURN BACKLAP
mode.
SWITCH OFF
11
B
A
D
H
F
Figure 11B
JACOBSEN
XXXX
BACKLAP?
YES NO
50% >
Figure 11C
43