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OPERATION
DHM 8, 9, 10 05/19
Operation Section 4-12
© 2019 Alamo Group Inc.
OPERA
TION
7.2 Adjusting Cutting Height
The cutting height can be adjusted by using
turnbuckle 1 on the third tractor point to vary the tilt of
the knives compared to the ground (Distance F).
Cutting height may vary within the range of 16/60
mm (0.63/2.36 inches) even though uneven land
may influence these values.
Do not allow the disc blade to contact the ground.
If the break away trips, STOP THE TRACTOR AND SHUT OFF THE PTO DRIVE AND
ENGINE. SECURE PARKING BRAKE. WAIT FOR ALL ROTATION TO STOP. Then inspect
the cutter bar for damage and remove the obstacle. Reverse tractor direction until the break
away resets. Engage the PTO drive and continue forward.
NEVER REMOVE OBSTRUCTIONS WHILE THE DISC IS ROTATING EVEN AT SLOW
SPEEDS. DISENGAGE THE PTO, STOP THE TRACTOR ENGINE, WAIT FOR ALL
ROTATING PARTS TO STOP AND ENGAGE THE PARKING BRAKE BEFORE LEAVING
THE TRACTOR SEAT. NEVER ALLOW ANYONE ON THE TRACTOR WHILE YOU
REMOVE OBSTRUCTIONS!
NEVER ALLOW ANYONE TO APPROACH THE MOWER WHILE DISCS ARE ROTATING.
SERIOUS INJURY CAN BE CAUSED BY ROTATING PARTS.
7.3 Adjusting Spring Tension
1. Lift the disk carrier bar until spring is not
tensioned.
2. Loosen nut A and turn spring B.
3. When adjusting is complete, tighten nut A.
The dimension C is standard adjustment.
100 mm (4”) for 7 and 8 disc model
130 mm (4”) for 6 disc model
The dimension C must always be
lower than the following for Transport:
130 mm (5-7/32”) for 7 and 8 disc model
150 mm (5-57/64”) for 6 disc model
Summary of Contents for DHM Series
Page 2: ......
Page 9: ...Safety Section 1 1 SAFETY SECTION...
Page 26: ...SAFETY DHM 8 9 10 05 19 Safety Section 1 18 2019 Alamo Group Inc SAFETY...
Page 27: ...SAFETY DHM 8 9 10 05 19 Safety Section 1 19 2019 Alamo Group Inc SAFETY...
Page 28: ...SAFETY DHM 8 9 10 05 19 Safety Section 1 20 2019 Alamo Group Inc SAFETY...
Page 30: ......
Page 31: ......
Page 57: ......
Page 83: ...Introduction Section 2 1 2019 Alamo Group Inc INTRODUCTION SECTION...
Page 88: ......
Page 89: ...Assembly Section 3 1 ASSEMBLY SECTION...
Page 101: ...Operation Section 4 1 OPERATION SECTION...
Page 141: ...Maintenance Section 5 1 2019 Alamo Group Inc MAINTENANCE SECTION...
Page 148: ...MAINTENANCE DHM 8 9 10 05 19 Maintenance Section 5 8 2019 Alamo Group Inc MAINTENANCE...
Page 150: ...DHM7 8 9 10 05 19 P N50078287 Printed U S A DISC MOWER DHM8 DHM9 DHM10...