Adjusting reel drop rate – MacDon M155 Operators Manual User Manual
Page 383
3. Loosen inner knob (A) on needle valve and then turn
outer knob (B),
a. Clockwise to decrease the drop rate,
b. Counterclockwise to increase the drop rate.
4. Tighten inner knob (A).
5. Check drop rate and readjust as required.
6. Close the platform. Refer to
Figure 5.204: Hydraulic Valve Block
Adjusting Reel Drop Rate
The reel should lower gradually when the lower reel switch is pressed. From fully raised to fully lowered should
take approximately 3–4 seconds. Drop rate is a customer preference and will vary based on crop type and
cutting condition.
NOTE:
Drop speed should NOT be less than 3 to 4 seconds from all the way up to all the way down as
structural damage may result.
NOTE:
If drop rate is too slow, return to cut height or tilt or float presets may time out. This is to keep the
hydraulics from being pressurized.
1. Lower header to ground, stop the engine, and remove
the key.
2. Open the left cab-forward side maintenance platform.
Refer to
5.5.1 Opening Platforms (Standard Position),
.
3. Locate valve (A) installed at port D, it controls the reel
drop rate.
NOTE: This valve is only installed with a draper header.
4. Loosen setscrew (B) and turn cap (C),
• Clockwise to decrease the drop rate
• Counterclockwise to increase the drop rate
5. Check drop rate and adjust as required
6. Tighten setscrew (B).
NOTE:
To reset to factory specifications, fully close
the needle valve and open it four turns
counterclockwise.
7. Close the platform. Refer to
Figure 5.205: Hydraulic Valve Block
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Revision A