Owner manual

Page 24 of 48
6.2.1.a.
Upstroke Bed Knife
Figure 5: Upstroke Bed Knife Adjustment
1. Turn the Main Power switch off, lock out power, and remove
line fuses.
2. Remove the access panel screws, including the safety switch
actuator arm screw (see Figure 5), and lift up and out to
remove the access panel. (The panel has a bottom, internal skirt
that must be lifted clear of the base strip.)
3. Remove the bolts and swing the screen cradle arms down.
Remove the screen(s).
4. Remove the bed knife screws and bed knives. The bed knives
can be reground (1/4” max.), repositioned, or replaced. Before
replacing the bed knives, thoroughly clean the bed knife seats.
5. Replace the individual bed knives on the bed knife seats and
tighten the screws until they are finger-tight.
NOTE: The same screws and washers should be re-used only when
the bed knives have been repositioned or reground. When blunt
knives are discarded and replaced with new knives, use new
screws and washers. This will reduce the risk of screw failure due
to overstretching. Screws and washers must be replaced with the
type specified in the Spare Parts List in Section 8 on page 42.
6. Using the bed knife adjusting screws, adjust the bed knives to
the rotor knives using a feeler gauge, until the clearance
between the ends of the rotor knives and the bedknives is
0.006” (0.15 mm) to 0.008” (0.20 mm). This clearance may
Upstroke Bed
Knife Locking
Screws
Upstroke Bed Knife Adjusting
Screw and Lock Nut