diamond mowers Rear Swing Flail User manual

350 EAST 60TH ST. N. • SIOUX FALLS, SD 57104
800.658.5561 • 605.977.3300
WWW.DIAMONDMOWERS.COM
PARTS 888.960.0361
WARRANTY + SERVICE 888.960.0364
OPERATOR’S MANUAL
350 EAST 60TH ST. N. • SIOUX FALLS, SD 57104
800.658.5561 • 605.977.3300
WWW.DIAMONDMOWERS.COM
PARTS 888.960.0361
WARRANTY + SERVICE 888.960.0364
OPERATOR’S MANUAL
REAR SWING
FLAIL

PRODUCT INFORMATION
Record the model and serial number of your unit here. When calling for
warranty, service, or parts, you may be asked to provide this information,
in order to ensure fast, accurate service.
MODEL: Rear Swing Flail
SERIAL NUMBER: ________________________________________________
©2018 Diamond Mowers, LLC
All rights reserved.
Any failure to read, understand and follow the instructions found in this operator’s
manual could lead to serious injury. Operators who choose to operate this equipment
without following instructions, or who choose to operate this equipment in a manner
inconsistent with the recommendations set forth in this manual, do so at their own
risk and assume the risk of injury. Diamond Mowers will not be liable for an owner
or operator’s loss, damage, or injury due to the misuse of the equipment, failure to
understand the inherent risks, or inability to properly operate the equipment.
REAR SWING FLAIL OPERATOR’S MANUAL
Provisional Patents: 62/484,363
2

WELCOME!
Thank you for choosing Diamond Mowers, and welcome to your Rear Swing
Flail. Before you begin operating, we encourage you to look through this
manual to review the proper maintenance and operating techniques that will
keep you, and your equipment, safe — while ensuring you the most productive
flail mower in the market.
We have nothing but respect and admiration for you. Our job at Diamond is
to provide you with the toughest, most reliable and safest equipment that
will allow you to do your job better. That also means being there when you
need us.
CONTACT US:
Parts: 888.960.0361 | [email protected]
Warranty / Service: 888.960.0364 | [e-mail]
Main Office: 800.658.5561 | 605.977.3300
Website: www.diamondmowers.com |Email: [e-mail]
Your time is important to us.
We guarantee that Genuine Diamond Parts will ship within 72-hours of the
order being placed or the parts and shipping are free.
Your satisfaction is guaranteed.
If you are not completely satisfied with your new Diamond in the first
30-days, we will buy it back. No questions asked.
Thanks again for choosing Diamond.
If at any time your needs are not being met by our team, please feel free
to call me direct.
Tim Kubista
VP Sales & Marketing
651.955.6665

OWNER REGISTRATION
In your welcome packet you should have received a warranty registration
form. Complete and return this form to our main office.
If you’d rather complete this info online, go to:
http://info.diamondmowers.com/register-my-product
Returning your registration information to Diamond will help us process any
warranty claims quickly and efficiently – so you can get back to work, fast.
TRANSFERRED OWNERSHIP
If you have acquired this flail mower from a previous owner, we encourage
you to register your equipment online. By registering your Diamond Mowers
unit, you’ll stay informed on product advancements, offers and service alerts.
Register by going to: http://info.diamondmowers.com/register-my-product
We honor our equipment’s warranty from the date it was put into service,
no matter who’s in charge of running it.
For any questions, contact our Warranty / Service team at:
888.960.0364 or 605.977.3300
warrant[email protected]
REAR SWING FLAIL OPERATOR’S MANUAL
4

TABLE OF CONTENTS
INTENDED USE 6
TAKE A LOOK AROUND 7
GETTING STARTED 9
OPERATING YOUR FLAIL MOWER 13
MAINTENANCE INTERVALS 19
TROUBLESHOOTING 36
PARTS BOOK 38
INDEX 50

REAR SWING FLAIL OPERATOR’S MANUAL
This attachment is designed to be used for mowing and light brush
management applications.
This includes:
•Cutting grass.
•Mulching light brush.
•Cutting a maximum of 2” (51mm) material continuously.
This attachment should only be used in an area free of obstructions and
bystanders. Any use on non-vegetative material, or in an area that is not
clear of persons and property, is strictly prohibited. Any use outside of the
aforementioned application is considered contrary to its intended use. Any
damage that may occur as a result of misuse will void warranty as stated in
Diamond Mowers’ warranty policy.
INTENDED USE
Do not operate this unit without first reading the safety precautions
and operating instructions in this manual.
6

TAKE A LOOK AROUND
Let’s get started by doing a quick walk around
of the Rear Swing Flail.
KNIVES
The cutting shaft is equipped with
our heavy duty brush and grass
blades for a smooth, even cut.
BELT DRIVE
All of our heavy duty flails use
a high strength belt with an
automatic self-tensioner; no
manual adjustment needed.
BEARINGS
For ultimate long life and reliability,
our flail cutting shafts and ground
rollers are equipped with the best
bearings in the industry.
CONTINUED ON NEXT PAGE
GEAR BOX
Our Rear Swing Flail comes
standard with a heavy duty oil bath
gear box for ultimate reliability.
7

TAKE A LOOK AROUND
SHOCK ABSORBER
The swing arm comes equipped
with a shock absorbtion system
that helps prevent damage in the
event of a collision.
SWING ARM
Our fully articulating swing arm
allows you to mow steep inclines
and ditches, as well as other
hard-to-reach areas standard side
mounted flails cannot go.
SWIVEL
Our heavy duty swivel is equipped
with greaseless nylatron bearings
and bushings, for long life
and service.
8

GETTING STARTED
REAR SWING FLAIL OPERATOR’S MANUAL
MACHINE REQUIREMENTS
Diamond’s Rear Swing Flail must be used
on a tractor with a minimum weight
of 9500lbs (4310kg) (sans weights),
equipped with a category II 3-Point
hitch, and a 540RPM PTO drive.
The tractor must be rated at a minimum
of 75hp (56kW).
CONTINUED ON NEXT PAGE
MOUNTING THE ATTACHMENT
To mount the attachment to the tractor:
•Adjust the draft beam links(1) (if
present) to their “float” position.
◦NOTE: Your draft beam links(1) (if
present) may not look exactly the
same as this example.
•Mount the hitch frame(3) to the
tractor’s 3-Point hitch draft beams(2)
and upper link(4).
•Start the tractor and raise the hitch
frame(3) to the desired work height.
•Adjust the upper link(4) until the
hitch frame(3) is plumb.
•Raise the jack stands(5) up against
the hitch frame(3).
◦Whenever disconnecting the
hitch frame(3) from the tractor’s
3-Point hitch, use the support
stands(5) to support the hitch
frame(3) by sliding them to their
lowered position.
(1)
(4) (3)
(2) (5)
(5) (5)
9

REAR SWING FLAIL OPERATOR’S MANUAL
CONTINUED ON NEXT PAGE
•Adjust your draft beam stabilizers(6)
and/or spacers(7) (if present) to
minimize any horizontal sway in the
tractor’s 3-Point hitch draft beams.
◦NOTE: Your draft beam
stabilizers(6) and/or spacers(7) (if
present) may not look exactly the
same as this example.
CONNECTING THE PTO DRIVE
•Slide the slip clutch(1) onto the
tractor’s PTO splined shaft(3).
◦Secure it in place with the
locking bolt(2) and lock nut thru
the groove on the tractor’s PTO
splined shaft(3).
(6) (7)
(2)
(3)
(4)
(2)
(1)
(1)
10

REAR SWING FLAIL OPERATOR’S MANUAL
CONTINUED ON NEXT PAGE
Always test a PTO drive shaft
connection by giving it a hard tug
in an attempt to disengage it. Do
not use a PTO drive shaft that fails
to stay locked to a splined shaft!
Serious damage, injury or death
can occur!
•Push in the spring loaded locking
pin(6) on the PTO drive shaft(5) and
slide it onto the slip clutch’s
splined shaft(4).
◦Push until the spring loaded
locking pin(6) on the PTO drive
shaft(5) locks into place in the
groove on the slip clutch’s
splined shaft(4).
•Push in the spring loaded locking
pin(6) on the other end of the PTO
drive shaft(5) and slide it onto the
gear box’s splined shaft(7).
◦Push until the spring loaded
locking pin(6) on the PTO drive
shaft(5) locks into place in the
groove on the gear box’s
splined shaft(7).
•Attach the PTO drive shaft safety
guard(8) to the gear box(7).
(6)
(4) (1)
(5)
(5)
(6)
(7)
(5)
(1)
(7)
(8)
(5)
(2)
(6)
11

REAR SWING FLAIL OPERATOR’S MANUAL
CONNECTING THE HYDRAULICS
•Connect the four hydraulic hoses
from the attachment to the tractor’s
auxiliary hydraulic remotes.
◦Make sure the connections are
done to match the recommended
lever control functions as
described in the Operation
section of this manual.
◦Reference the tractor’s operator
manual for more information on
the tractor’s auxiliary
hydraulic remotes.
12

REAR SWING FLAIL OPERATOR’S MANUAL
OPERATING YOUR FLAIL MOWER
Before you operate, note that the primary responsibility for safety on this
equipment falls to the operator. Only trained individuals who have read and
understood this manual should operate this unit.
If any portion of this manual is not understood, contact Diamond Mowers’
Service/Warranty at 888.960.0364 or 605.977.3300.
SAFETY TIPS
Be sure to read all warnings carefully. They are included for your safety,
and for the safety of others working with you.
•Always wear applicable personal protective equipment (PPE)
when operating.
•Block off work area from bystanders, livestock, etc.
•Bystanders must keep a distance of 300’/100m from the unit
when operating.
•Knives are always sharp and can cause injury, even when not in motion.
CONTINUED ON NEXT PAGE
Indicates where MINOR injury COULD result if instructions are
not followed.
Indicates where SERIOUS injury or death COULD result if instructions
are not followed.
Indicates where SERIOUS injury or death WILL result if instructions are
not followed.
Indicates a property damage hazard ONLY, no PERSONAL injury.
13

REAR SWING FLAIL OPERATOR’S MANUAL
•DO NOT use extremities to dislodge debris from the cutting shaft
or knives.
•Operate only from the operator’s station.
•Hydraulic fluid is hot and will heat any exposed steel, hoses, motor, or
spindle in its proximity.
•Route hoses correctly to ensure a full range in motion.
•Make certain hoses are out of the way of tires, tracks or the ground.
•Be certain the cutting shaft has come to a complete stop before exiting
the cab.
Contact with the cutting shaft and knives while in motion will cause
serious injury or death. The cutting shaft spins at a very high speed and
can take several minutes to stop. Be sure all personnel are clear of the
machine before engaging the Flail Mower.
CONTINUED ON NEXT PAGE
STOWED POSITION
When transporting Diamond’s Flail
Mower between operations, make
sure to protect it from collisions and
accidental damages by placing it in the
stowed position.
Failure to place the head in its stowed
position could result in
structural damage.
14

REAR SWING FLAIL OPERATOR’S MANUAL
CONTINUED ON NEXT PAGE
GRASS & BRUSH CUT
Use to cut grass or brush.
•Lower the front of the deck slightly to ensure that there is ample room
for exhausted material to be dispersed.
◦If you hear the cutting shaft, or engine slow down, lift up the head
and/or slow your ground speed.
•A second pass may be needed for heavy brush or grass.
◦Complete the initial pass at 12” (305mm) into the material.
◦Complete a second pass at ground level to thoroughly mulch the
remaining material.
OPERATING TECHNIQUES
1
2
2
1
15

FINISHED MOW
Use for a finished look.
•Drive straight into the material keeping the deck low and level, with the
ground roller resting on the ground.
•Maintain speed of the cutting shaft and ground speed.
REAR SWING FLAIL OPERATOR’S MANUAL
CONTINUED ON NEXT PAGE
OPERATING TECHNIQUES
16

REAR SWING FLAIL OPERATOR’S MANUAL
CONTINUED ON NEXT PAGE
TREE CUT
Use to cut small trees or brush without mulching.
•For small trees, start working at the top and cut the tree in 12” (305mm)
increments.
•With the Flail Mower lifted slightly, drive straight into the material.
•Allow enough time for the tree section to fall away while cutting.
•Use a smooth, quick action to cut the material completely.
◦NOTE: Never drop the mower straight down on trees. Severe damage
will incur. NO PANCAKING!
OPERATING TECHNIQUES
17

NO PANCAKING
DO NOT pancake.
•This machine is not built to drop on top of material for cutting or
mulching. Damage will incur to the cutting shaft and bearings as a result
of driving down (pancaking) on top of the material.
REAR SWING FLAIL OPERATOR’S MANUAL
OPERATING TECHNIQUES
Dropping the mower straight down (pancaking) on heavy vegetation can
cause severe damage to the cutting shaft and bearings.
For more tips, visit us online at www.DiamondMowers.com
18

REAR SWING FLAIL OPERATOR’S MANUAL
MAINTENANCE INTERVALS
Regular maintenance will make certain your unit stays productive and retains
a long, operating life. The following chart represents the minimum intervals
recommended for inspection and maintenance.
PROCEDURE 10 HOURS/
DAILY
50
HOURS/
WEEKLY
500
HOURS/
ANNUALLY
AS
NEEDED
Belts & Pulleys Adjust
Cutting Shaft Grease Inspect
Discharge Flap Inspect
Gear Box Inspect Oil
Ground Roller Oil
Hitch Frame (3-Point) Inspect
Hydraulic Fittings Inspect
Knives Inspect
PTO Slip Clutch / Drive Shaft Grease
Skid Shoes Inspect
Swing Arm Grease
Swivel Replace
When replacing parts, use Genuine Diamond Parts. Guaranteed to ship within
72-hours of your order being placed, or the parts and shipping are free.
Call: 888-960-0361 or 605.977.3300 | Email: [email protected]
Order online: www.diamondmowers.com
CONTINUED ON NEXT PAGE
19

REAR SWING FLAIL OPERATOR’S MANUAL
CONTINUED ON NEXT PAGE
BELTS AND PULLEYS
Belt Replacement:
•Remove the access cover and top
gear box bracket section.
•Push the idler pulley(1) away from
the belt(2) with a wrench, pry bar, or
similar tool to relieve pressure on
the belt.
◦DO NOT damage the idler pulley
or other components when
relieving pressure on the belt.
•Remove the belt from the pulleys.
•Reverse the above instructions to
install the new belt(2).
•Replace the access cover.
Pulley Alignment:
•Use a straight edge(5) to confirm the
cutting shaft(3) and motor(4) pulleys
are in the same plane as the
idler pulley(1).
•If pulley misalignment is found,
correct as follows:
◦Loosen the bolts(6) holding the
tapered collar(7) to the out-of-
alignment pulley(8).
◦With a padded mallet, tap the
pulley(8) backwards or forwards
on its shaft to align it with the
idler pulley(1).
◦With the pulley(8) aligned, tighten
the bolts(6) holding the tapered
collar(7) to the pulley.
◦NOTE: This process may be easier
without the belt installed.
•Replace the access cover.
(1)
(2)
(1)
(2)
(3)
(4)
(7)
(8)
(6)
(5)
20