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Section 1: Assembly and Set-Up
DM3705, DM3706, and DM3707 Series Disc Mowers 327-083M
9/15/06
Table of Contents
Tools Required
•
Fork lift, crane hoist or block-and-tackle
• Impact wrench or socket and ratchet set (English &
metric)
• Rubber mallet
• Box-end (english & metric), allen (english & metric)
and crescent wrenches
• Drift pins
• Screwdriver
• Safety shoes, safety glasses and gloves. A hard hat
should be worn by anyone working under the crane.
Assembly Preparation
Having all parts and equipment readily at hand will speed
up your assembly task and make the job as safe as
possible.
Prepare Disc Mower assembly area by removing other
equipment and then sweeping it clean of dust and
contaminants. Un-pack crate and remove all contents.
Be careful not to break hydraulic seals or pull off
hydraulic components.
Raise 3-point mainframe with a forklift, hoist or block-
and-tackle and place on pallets or blocks so it is elevated
about 10” off the floor.
Your cutter bar is shipped assembled and must be
checked for correct cutter plate arrangement. Figure 1-1
indicates correct cutter plate arrangement for different
mower sizes. Refer to “Cutter Bar Timing Adjustment”
on page 22 to make adjustments to cutterplates.
Also shown in Figure 1-1 is a rotation arrow on each
cutter plate indicating direction of cutter plate rotation.
The cutting edge of the cutter blades should lead in the
direction of cutter plate rotation. This direction alternates
from one cutter plate to the next. Make certain all cutting
blades have been mounted correctly. Remove any
blades installed incorrectly and reinstall them in the
correct cutting direction. Refer to “Blade Replacement”
on page 21 for instructions on how to install blades.
NOTE: Remove heavy components from crate with
a hoist or block-and-tackle.
Cutter Bar Plate Rotation
Figure 1-1
Gearbox and Cutter Bar Lubrication
The gearbox and cutter bar should arrive filled with SAE
90 GL4 (EP) gear lube. However, you should check oil
level in both before using and add oil if necessary.
Additional instructions and specifications for gearbox
and cutter bar are provided as noted below:
Gearbox Lubrication . . . . . . . . . . . . . . . . . . . .page 23
Cutter Bar Lubrication. . . . . . . . . . . . . . . . . . .page 24
Gearbox Specifications. . . . . . . . . . . . . . . . . .page 25
Cutter Bar Specifications . . . . . . . . . . . . . . . .page 25
15144
DM3705
DM3706
DM3707
IMPORTANT: The recommended quantity of cutter
bar oil should not be exceeded. Results of overfilling
will be overheating with potential for severe damage
to the cutterbar.
Section 1: Assembly and Set-Up