Reelmaster 4000–D Page 7 – 5 Cutting Units
Height–of–Cut Adjustment (Floating Cutting Unit)Overview of Procedure:
1. Adjust reel to bedknife contact
2. Level rear roller to reel
3. Adjust initial height–of–cut using gauge bar.
1. Adjust reel to bedknife contact on all cutting units.
(see Adjust Reel to Bedknife Contact).
2. Level rear roller to the real.
A. Start engine and lower the cutting unit onto a flat
surface such as a piece of 3/4–inch (1.9 cm) plate
steel of at least 20 x 30 inches (50 x 76 cm). Stop
engine and remove key from ignition switch. Lock
cutting units in the fixed position by loosening the
jam nut on the lockout pin (Fig. 6) and screwing the
pin into the hole in pivot arm (Fig. 7). Tighten nut to
secure lockout. Raise front rollers up so they do not
contact the flat surface.
Note: Using a bar 3/8inch (9.5 mm) thicker than
height–of–cut provides the proper bedknife attitude
(heeled ”up” in back), which is required for excellent low
height–of–cut performance.
B. Insert a piece of bar stock 25 to 28 inches (64 to
71 cm) long and approximately 3/8 inch (9.5 mm)
thicker than the desired height–of–cut under the
reel and up against the bedknife cutting edge. The
reel (not bedknife) must contact the bar stock along
its full length (Fig. 8).
C. Loosen rear roller jam nuts and adjusting knobs.
Push roller down against the flat surface. At this
point the reel should contact the bar stock, and the
rear roller should contact the flat surface. Contact
should exist along the entire length of the reel and
rear roller. Tighten rear roller adjustment knobs and
jam nuts. Make sure roller and reel are both still
making contact after the jam nuts have been tight-
ened. Check roll contact by trying to slide paper be-
tween the roller and the flat surface.
D. Rear roller is now leveled to the reel.
Figure 6
Cutting Unit Float Position
1. Lockout pin 2. Jam nut
1. Lockout pin 2. Jam nut
Figure 7
Cutting Unit Fixed Position
Figure 8
Leveling Rear Roller to Reel
HOC + 3/8 INCH
(+ 9.5 mm)
Cutting Units