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Section 2: Operating
9/15/06
DM3705, DM3706, and DM3707 Series Disc Mowers 327-083M
Table of Contents
Operating Check List
In addition to design and configuration of equipment,
hazard control and accident prevention are dependent
upon awareness, concern, prudence and proper training
involved in operation, transport, maintenance and
storage of equipment. Perform inspection checks before
cutting with the mower.See Operating Checklist on left
side of this page.
Working Position
!
DANGER
The driveline and gearbox shields must be in place and secure
when operating to avoid injury or death from entanglement in
rotating drivelines.
!
DANGER
Do not operate mower without the curtain completely in place
around cutter bar. Do no lean against or stand on curtain.
!
WARNING
Before lowering cutter bar, make sure no one is within 20 feet of
mower.
Operating Checklist
4 Check Reference
Safety Rules have been read and Page 1
Operating Instructions have been read
and understood.
This
section
Check oil level in gearbox and cutter
bar.
Page 23
Check to see that all oil plugs in
gearbox and cutter bar are installed and
tight.
Page 23
Check to see that all nuts and bolts are
tight.
Page 28
Check to see that all guards and shields
are in place.
Operator’
s Manual
Lubricate mower as noted in
Maintenance and Lubrication
Section.
Page 23
Check to see that all implement
attaching points and hardware are
secure and in place.
Operator’
s Manual
Check all Hydraulic lines and fittings for
leaks.
Operator’
s Manual
1. Lower mower using tractor 3-point lift.
2. Retract hydraulic cylinder and pull rope to disengage
transport latch. See “Transport Latch Operation”
on page 15.
3. Raise 3-point hitch so inner end of cutter bar is
approximately 12” off the ground. Lower cutter bar
hydraulic cylinder to position outside end of cutter
bar to just touch the ground. Refer to Figure 2-2 on
page 13 and lower 3-point to working position so that
hitch level stop pin aligns with run indicator arrow
(decal 838-524C).
4. Put tractor hydraulics into float position. The mower
will not follow ground contours correctly if not in float
position.
Mowing Instructions
!
WARNING
Prolonged exposure to high sound levels require hearing
protection. Wear hearing protection when operating this
machine with open platform tractors.
Allow a few minutes for oil to spread in cutter bar before
engaging PTO when changing from transport to
operating position.
With cutting bar on the ground, engage PTO at low
tractor idle and accelerate gradually to 540 rpm PTO
speed.
If cutter bar is operated at an angle for long periods of
time, hold it horizontal for a few minutes every half hour
or so of work to help lubricate gears at either end of cutter
bar.
Adapt forward speed to working conditions. Gear down
when mowing in dense crops. Do not lower tractor rpm.
Adverse Field Conditions
!
WARNING
The upper gears will not receive sufficient lubricant if cutterbar
cutting angle is more than 35°up or down. Also the belt guard
and drive belt will be damaged if cutter bar cutting angle is
down more than 35°
NOTE: Before using the mower, check safety
break-away linkage to make sure all components
work correctly. See page 18.
NOTE: Although mower is shielded to prevent
objects from being thrown by the blades, no one
shield is 100% effective. Most people are not
knowledgeable of dangers to being around a disc
mower while it is in operation. Therefore, the
operator should always stop mowing when
someone is near by.