Gehl 1162, 1165 Operator's Manual
1162/1165
Disc Mower
Form No.
909793
Revision B
OPERATOR’S MANUAL
GEHL
NEW AGRICULTURAL EQUIPMENT
DISC MOWER
WARRANTY
GEHL AGRICULTURE DIVISION of the GEHL COMPANY, hereinafter referred to as Gehl,
warrants new Gehl Disc Mowers and attachments, to the Original Retail Purchaser to be free
from defects in material and workmanship for a period of twelve (12) months
for commercial/custom use} from the Warranty Start Date.
GEHL AGRICULTURE WARRANTY INCLUDES:
Genuine Gehl parts and labor costs required to repair or replace equipment at the selling
dealer’s business location.
GEHL MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND,
EXPRESS OR IMPLIED (INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE), EXCEPT AS
EXPRESSLY STATED IN THIS WARRANTY STATEMENT.
{ninety (90) days
GEHL WARRANTY DOES NOT INCLUDE:
1. Transportation to selling dealer’s business location or, at the option of the Original Retail Purchaser,
the cost of a service call.
2. Used equipment.
3. Components covered by their own non-Gehl warranties, such as tires, trade accessories and
engines.
4. Normal maintenance service and expendable, high wear items.
5. Repairs or adjustments caused by: improper use; non- intended use; failure to follow recommended
maintenance procedures; use of unauthorized attachments; accident or other casualty.
6. Liability for incidental or consequential damages of any type, including, but not limited to lost profits
or expenses of acquiring replacement equipment.
No agent, employee or representative of Gehl has any authority to bind Gehl to any warranty except as
specifically set forth herein. Any of these limitations excluded by local law shall be deemed deleted from this
warranty; all other terms will continue to apply.
TABLE OF CONTENTS
Warranty Inside Front Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1
Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2
Specifications 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3
Checklists 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4
Safety 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5
Controls & Safety Equipment 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 6
Operation 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 7
Adjustments 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 8
Lubrication 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 9
Service 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 10
Preparing for Field Operation 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 11
Transporting 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 12
Storage 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 13
Troubleshooting 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 14
Set-up & Assembly 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 15
Optional Equipment & Accessories 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 16
Decal Locations 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Hardware Torque Inside Back Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printed in U.S.A. 1 909793/BP0805
CHAPTER 1
INTRODUCTION
This Operator’s Manual provides information about
maintaining and servicing the DM1162 and DM1165
disc mowers. More important, this manual provides an
operating plan for safe and proper use of the machine.
Major points of safe operation are detailed in the Safety
chapter.
Please read and understand the contents of this manual
completely and become familiar with the machine
before operating it. See your authorized Gehl dealer
with any questions concerning information in the
manual, for additional manuals or for information
concerning availability of manuals in other languages.
Throughout this manual, information is provided that is
set in italic type and introduced by the word NOTE or
IMPORTANT. BE SURE to read carefully and comply
with the message — it will improve operating and
maintenance efficiency, help avoid breakdowns or
damage, and extend machine life.
This Operator’s Manual and an AEM Safety Manual are
provided with the machine. These manuals should stay
with the machine at all times, and should remain with
the machine if it is resold.
If the machine was purchased used, or if the owner’s
address has changed, please provide the Gehl dealer or
Gehl Company Service Department with the current
owner’s name and address, along with the machine
model and serial number. This will allow the owner to
be notified directly in case of an important product
issue, such as a safety update program.
M O D E L N O .
DM116
(Fill In)
S E R I A L N O .
(Fill In)
COMPANY
W E S T B E N D ,
Typical Model & Serial Number Plate
W I 5 3 0 9 5 U S
DO NOT use the machine for any applications or
purposes other that those described in this manual.
Before using the machine with special attachments
other than those approved by Gehl, consult your Gehl
dealer. Any person using non-approved attachments is
responsible for the consequences.
The Gehl dealership network stands ready to provide
any assistance that may be required, including providing genuine Gehl service parts. All service parts should
be obtained from a Gehl dealer. Give complete information about the part and include the model and serial
numbers of machine. Record the serial number in the
space provided above, for quick reference.
The model number and serial number for the machine
are on a plate located on a gusset on the main frame.
“Right” and “left” are determined from a position
standing behind the unit and facing the direction of
travel. From this position, the support leg is on the “left”
side.
A
909793/BP0805 2 Printed in U.S.A.
Gehl Company strives to continuously improve its
products and reserves the right to make changes and
improvements in the design and construction of any part
without incurring the obligation to install such changes
on any machine previously delivered.
CHAPTER 2
SPECIFICATIONS
All Dimensions are in Inches (Millimeters) Unless Otherwise Noted
Models & Description:
DM1162 & DM1165 Disc Mower
Cutting Width:
DM1162 94 (2388). . . . . . . . . . . . . . . . . . . .
DM1165 110 (2794). . . . . . . . . . . . . . . . . . .
Minimum Power Required:
DM1162 42 hp (30 kW). . . . . . . . . . . . . . . .
DM1165 50 hp (36 kW). . . . . . . . . . . . . . . .
PTO Drive Speed 540 RPM. . . . . . . . . . . . . . . . . . . .
Hitch Type Category II 3-point. . . . . . . . . . . . . . . . .
Number of Discs:
DM1162 6. . . . . . . . . . . . . . . . . . . . . . . . . . .
DM1165 7. . . . . . . . . . . . . . . . . . . . . . . . . . .
Disc Speed 2986 RPM. . . . . . . . . . . . . . . . . . . . . . . .
Total Number of Knives:
DM1162 12. . . . . . . . . . . . . . . . . . . . . . . . . .
DM1165 14. . . . . . . . . . . . . . . . . . . . . . . . . .
Transport Width 10 (254) plus width of tractor. . . .
Approximate weight:
DM1162 1180 lbs. (536 kg). . . . . . . . . . . . . .
DM1165 1250 lbs. (568 kg). . . . . . . . . . . . .
Hardware Metric. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Capacities:
Main Drive Gearbox 0.5 U.S. qts. (0.45 Liter). . . . .
Cutterbar 2.1 U.S. qts. (2.0 Liters). . . . . . . . . . . . . . .
Standard Features:
Hydraulic Lift Cylinder & Hoses
Flexible Safety Shield - Supported on Left Side Only
Disc Protection Plates & Skid Shoes
Heavy Duty, Category II, 3-Point Hitch Mount with
Adjustable Lower Link Pins
Heavy Duty PTO with Overrunning Clutch
Six (DM1162) and Seven (DM1165) Disc, Low Pro-
file
Cutterbar with Heavy Duty Gears & Bearings
Easily Replaceable Disc Drive Stations
Right Side Swathing Wheel
Self-supporting when Removed from Tractor
Transport Lock Controlled from Operator’s Seat
Outer Swath Wheel
Optional Features:
Side Deflector Kit
V-type Knives
Printed in U.S.A. 3 909793/BP0805
Chapter 2 - Specifications
INTENTIONALLY BLANK
909793/BP0805 4 Printed in U.S.A.
CHAPTER 3
CHECKLIST
PRE- DELIVERY
After the disc mower has been completely set-up, the
following inspections MUST be made before delivering it to the customer. Check off each item after it is
completed.
Check that:
Disc mower has been assembled correctly according to
o
instructions in the Set-up & Assembly chapter of the operator’s manual.
The pressure relief valve, which is located in the side of
o
the angle gearbox, is free to operate and not seized up.
All grease fittings have been properly lubricated (see the
o
Lubrication chapter for locations).
The gearbox and cutterbar have been filled to their proper
o
operating levels (see the Lubrication chapter).
All guards, shields and decals are in place and securely at-
o
tached.
All fasteners are properly secured.
o
All adjustments have been made to comply with settings
o
Remove Dealer’s File Copy at Perforation
given in the Adjustments chapter.
Model and serial numbers for the machine are recorded in
o
spaces provided in both checklist pages.
Hook the unit up to a 540 RPM tractor and test
run the unit while making sure that proper
operation is exhibited by all components.
Check that:
The telescoping PTO driveline rotates freely inside the
o
properly chain anchored PTO shields.
All blades and discs are turning freely.
o
All mechanisms are operating smoothly.
o
All hydraulic hose connections are not leaking under pres-
o
sure.
The lift mechanism is operating smoothly and properly.
o
I acknowledge that pre-delivery procedures were performed on the machine as outlined above.
Dealership’s Name
DELIVERY
The following checklist is an important reminder of
valuable information that MUST be passed on to the
customer at the time the machine is delivered. Check off
each item as you explain it to the customer.
Check that:
Give the operator’s manual to the customer. Instruct the
o
customer to be sure to read and completely understand the
operator’s manual BEFORE operating the machine.
Explain how to use the Index in the operator’s manual as
o
a quick page number locating guide.
Explain the Safety chapter in the operator’s manual and
o
review it with the customer.
Explain that the machine requires regular lubrication for
o
continued proper operation and long life. Review the Lubrication chapter in the manual with the customer, emphasizing that the oil in the cutterbar and the gearbox MUST
be changed after the first 10 hours of operation.
Explain the function of the PTO slip clutch.
o
Explain the function of the transport lock and how it oper-
o
ates.
Explain the function of the cutterbar breakaway mecha-
o
nism.
Explain the function and value of the PTO safety chain
o
and the flexible sheet cutterbar guard.
Demonstrate the proper use of the spring-loaded PTO
o
locking couplers.
Completely fill out the Owner’s Registration, including
the customer’s signature, and return it to the company.
Customer’s Signature
Date Delivered
(Dealer’s File Copy)
Dealer Representative’s Name
Date Checklist Filled-out
Model Number Serial Number
Printed in U.S.A. 5 909793/BP0805
INTENTIONALLY BLANK
(To be removed as Dealer’s File Copy)
909793/BP0805 6 Printed in U.S.A.
CHAPTER
CHECKLIST
PRE- DELIVERY
After the disc mower has been completely set-up, the
following inspections MUST be made before delivering
it to the customer. Check off each item after it is
completed.
Check that:
Disc mower has been assembled correctly according to in-
o
structions in the Set-up & Assembly chapter of the operator’s manual.
The pressure relief valve, which is located in the side of
o
the angle gearbox, is free to operate and not seized up.
All grease fittings have been properly lubricated (see the
o
Lubrication chapter for locations).
The gearbox and cutterbar have been filled to their proper
o
operating levels (see the Lubrication chapter).
All guards, shields and decals are in place and securely at-
o
tached.
All fasteners are properly secured.
o
All adjustments have been made to comply with settings
o
Remove Dealer’s File Copy at Perforation
given in the Adjustments chapter.
Model and serial numbers for the machine are recorded in
o
spaces provided on both checklist pages.
Hook the unit up to a 540 RPM tractor and test
run the unit while making sure that proper
operation is exhibited by all components.
Check that:
The telescoping PTO driveline rotates freely inside the
o
properly chain anchored PTO shields.
All blades and discs are turning freely.
o
All mechanisms are operating smoothly.
o
All hydraulic hose connections are not leaking under pres-
o
sure.
The lift mechanism is operating smoothly and properly.
o
I acknowledge that pre-delivery procedures were performed on the machine as outlined above.
DELIVERY
The following Checklist is an important reminder of
valuable information that MUST be passed on to the
customer at the time the machine is delivered. Check off
each item as you explain it to the customer.
Check that:
Give the operator’s manual to the customer. Instruct the
o
customer to be sure to read and completely understand the
operator’s manual BEFORE operating the machine.
Explain how to use the Index in the operator’s manual as
o
a quick page number locating guide.
Explain the Safety chapter in the operator’s manual and
o
review it with the customer.
Explain that the machine requires regular lubrication for
o
continued proper operation and long life. Review the Lubrication chapter in the manual with the customer, empha-
sizing that the oil in the cutterbar and the gearbox MUST
be changed after the first 10 hours of operation.
Explain the function of the PTO slip clutch.
o
Explain to the customer the function of the transport lock
o
and how it operates.
Explain the function of the cutterbar breakaway mecha-
o
nism.
Explain the function and value of the PTO safety chain
o
and the flexible sheet cutterbar guard.
Demonstrate the proper use of the spring-loaded PTO
o
locking couplers.
Completely fill out the Owner’s Registration, including
the customer’s signature, and return it to the company.
Customer’s Signature
Dealership’s Name
Dealer Representative’s Name
Date Checklist Filled-out
Model Number Serial Number
Printed in U.S.A. 7 909793/BP0805
Date Delivered
(Pages 5 & 6 Have Been Removed
at Perforation)
CHAPTER 4
SAFETY
The above Safety Alert Symbol means ATTENTION!
BE ALERT! YOUR SAFETY IS INVOLVED! It
stresses an attitude of ‘‘Heads Up for Safety’’ and can be
found throughout this Operator’s Manual and on the
machine itself.
BEFORE YOU ATTEMPT TO OPERATE THE
MACHINE, READ AND STUDY THE FOLLOWING SAFETY INFORMATION. BE SURE THAT
EVERYONE WHO OPERATES OR WORKS
WITH THIS EQUIPMENT IS FAMILIAR WITH
THESE SAFETY PRECAUTIONS.
Gehl Company ALWAYS takes operator safety into
consideration during product design, guarding exposed
moving parts for operator protection wherever possible.
Some areas, however, cannot be guarded or shielded
without adversely effecting operation.
Information in this manual and decals on the machine
warn of hazards. Both this manual and the decals should
be read and observed closely.
DANGER
‘‘DANGER’’ indicates an imminently hazardous situation which, if not avoided, will result
in death or serious injury.
MANDATORY SAFETY SHUTDOWN
PROCEDURE
Work of any type on machinery is always more
hazardous when the machine is in operation.
Therefore, unless expressly instructed to the
contrary, BEFORE unclogging, cleaning, adjusting, lubricating or servicing the machine,
the following MANDATORY SAFETY SHUTDOWN PROCEDURE should ALWAYS be followed:
BEFORE unclogging, cleaning, adjusting, lubricating or servicing the machine:
1. Disengage the tractor PTO.
2. Place the tractor transmission in park and/or
lock brake pedals to prevent tractor movement, then shut off the tractor engine. Lower
the machine until it is resting on firm ground.
3. Remove the tractor ignition key and take it
with you.
4. Wait for all movement to stop.
5. Remove the telescoping PTO drive.
ONLY when you have taken these precautions can
you be sure it is safe to proceed. Failure to follow the
above procedure could lead to death or serious
bodily injury!
WARNING
‘‘WARNING’’ indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
‘‘CAUTION’’ indicates a potentially hazardous
situation which, if not avoided, may result in
minor or moderate injury. May also alert
against unsafe practices.
909793/BP0805 8 Printed in U.S.A.
SAFETY REMINDERS
It is recommended that the towing tractor be equipped
with an enclosed operator’s cab with safety glass or
polycarbonate windows, or with protective mesh
screens.
Some photographs used in this manual may show doors,
guards and shields open or removed for illustration
purposes ONLY. BE SURE all doors, guards and shields
are in their proper operating positions and securely
attached BEFORE operating the machine.
ALWAYS wear safety glasses with side shields when
striking metal against metal. It is further recommended
that a softer (chip-resistant) material be used to cushion
the blow. Failure to follow these instructions could lead
to serious injury to the eyes or other parts of the body.
SAFETY
(Continued)
BEFORE using the disc mower, inspect the cutting
knives, discs and attaching hardware. Do not straighten
bent knives — they must be replaced. Knives MUST be
replaced in pairs.
To ensure continued safe operation, replace damaged or
worn-out parts with genuine Gehl service parts, BEFORE operating the machine.
Regularly inspect the disc mower’s curtain. Replace the
curtain if it is worn or damaged. NEVER operate the
machine unless the protective curtain is in place and
folded down.
NEVER search for hydraulic fluid leaks using your bare
hands — use a piece of cardboard instead. Escaping
fluid under pressure can be invisible and can penetrate
skin and cause serious injury! If any fluid is injected into
the skin, see a doctor at once! Injected fluid MUST BE
surgically removed by a doctor familiar with this type of
injury or gangrene may result.
To avoid injury when changing from the “transport”
position to “operating” position, or “operating” to
“transport” position, BE SURE the immediate area is
clear of people and obstructions BEFORE changing
positions!
Fields to be mowed must be free of obstructions. Keep
people 50 feet (15 m) or more away from the machine
during operation. If an obstruction is encountered
during mowing, stop the unit immediately — follow the
MANDATORY SAFETY SHUTDOWN PROCEDURE! Check the entire disc mower before continuing
use.
DO NOT go near the machine until the discs have
stopped rotating! The mechanism can continue to
operate after the PTO is disengaged!
DO NOT attempt to hand feed or kick any crop or
material into the machine!
DO NOT attempt to mow crop in reverse!
DO NOT mow crop until you ARE SURE that the field
to be mowed is free of obstructions!
REMEMBER, it is the owner’s responsibility to com-
municate information about the safe use and proper
maintenance of the machine.
WARNING
DO NOT use the DM1162 or DM1165 Mower for
roadside cutting. DO NOT operate near
people.
Printed in U.S.A. 9 909793/BP0805
125476
SAFETY
(Continued)
093367
163957
142375
909793/BP0805 10 Printed in U.S.A.
SAFETY
(Continued)
Printed in U.S.A. 11 909793/BP0805
093373
093381
SAFETY
(Continued)
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093653
093466
SAFETY
(Continued)
091444
Printed in U.S.A. 13 909793/BP0805
CHAPTER 5
CONTROLS & SAFETY EQUIPMENT
CAUTION
Become familiar with and know how to use
ALL safety devices and controls on the disc
mower BEFORE operating it. Know how to
stop disc mower operation before starting.
2
4
3
GUARDS, COVERS & SHIELDS
Where possible (without affecting machine operation),
guards, covers and shields are used to protect potentially
hazardous areas. In many places, decals are also
provided to warn of potential hazards as well as to
display special operating procedures.
WARNING
Read and observe ALL warnings on the machine BEFORE operating it. DO NOT operate
the machine unless ALL factory-installed
guards, covers and shields are in place and
properly secured.
Drive Line Shields (Fig . 1)
The telescoping PTO drive, between the disc mower
input shaft and tractor PTO shaft, is equipped with guard
tubes which are held stationary by chains. Be sure the
front chain is attached to tractor and the rear chain is
attached to the disc mower.
3
1
1 - PTO Drive Shield
2 - PTO Drive Coupler
3 - PTO Guard Tube Chain (2 places)
4 - Disc Mower PTO Shield
Fig. 1: Telescoping PTO Driveline Shields
Belt Drive Cover (Fig. 2)
A cover is provided to protect and prevent contact with
the moving drive belts. Be sure the cover is in place and
tightly secured whenever the disc mower is in operation.
WARNING
BEFORE starting the tractor engine, BE SURE
the PTO is properly coupled to the tractor PTO
shaft and mower input shaft. Also, BE SURE
that the PTO guard tubes are properly chained
to the tractor PTO guard and disc mower to
prevent the tubes from turning.
909793/BP0805 14 Printed in U.S.A.
1
1 - Drive Belt Cover
Fig. 2
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