Table of Contents
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Table of Contents
Summary of Contents for Gehl 1162
- Page 1 Form No. 909793 1162/1165 Revision B Disc Mower OPERATOR’S MANUAL...
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Page 2: Warranty
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... -
Page 3: Table Of Contents
TABLE OF CONTENTS Warranty ............Inside Front Cover Chapter 1 Introduction... -
Page 4: Chapter 1 Introduction
Before using the machine with special attachments set in italic type and introduced by the word NOTE or other than those approved by Gehl, consult your Gehl IMPORTANT. BE SURE to read carefully and comply dealer. Any person using non-approved attachments is with the message —... - Page 5 CHAPTER 2 SPECIFICATIONS All Dimensions are in Inches (Millimeters) Unless Otherwise Noted Oil Capacities: Models & Description: Main Drive Gearbox ..0.5 U.S. qts. (0.45 Liter) DM1162 & DM1165 Disc Mower Cutting Width: Cutterbar ....2.1 U.S.
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Page 6: Chapter 2 Specifications
Chapter 2 - Specifications INTENTIONALLY BLANK 909793/BP0805 Printed in U.S.A. -
Page 7: Checklists
CHAPTER 3 CHECKLIST PRE - DELIVERY DELIVERY After the disc mower has been completely set-up, the The following checklist is an important reminder of following inspections MUST be made before deliver- valuable information that MUST be passed on to the ing it to the customer. - Page 8 INTENTIONALLY BLANK (To be removed as Dealer’s File Copy) 909793/BP0805 Printed in U.S.A.
- Page 9 CHAPTER CHECKLIST PRE - DELIVERY DELIVERY After the disc mower has been completely set-up, the The following Checklist is an important reminder of following inspections MUST be made before delivering valuable information that MUST be passed on to the it to the customer. Check off each item after it is customer at the time the machine is delivered.
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Page 10: Chapter 4 Safety
MANDATORY SAFETY SHUT- THESE SAFETY PRECAUTIONS. DOWN PROCEDURE should ALWAYS be fol- lowed: Gehl Company ALWAYS takes operator safety into consideration during product design, guarding exposed BEFORE unclogging, cleaning, adjusting, lubricat- moving parts for operator protection wherever possible. - Page 11 MANDATORY SAFETY SHUTDOWN PROCE- To ensure continued safe operation, replace damaged or DURE! Check the entire disc mower before continuing worn-out parts with genuine Gehl service parts, BE- use. FORE operating the machine. DO NOT go near the machine until the discs have Regularly inspect the disc mower’s curtain.
- Page 12 SAFETY (Continued) 093367 142375 163957 909793/BP0805 Printed in U.S.A.
- Page 13 SAFETY (Continued) 093373 093381 Printed in U.S.A. 909793/BP0805...
- Page 14 SAFETY (Continued) 093653 093466 909793/BP0805 Printed in U.S.A.
- Page 15 SAFETY (Continued) 091444 Printed in U.S.A. 909793/BP0805...
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Page 16: Controls & Safety Equipment
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. GUARDS, COVERS & SHIELDS Where possible (without affecting machine operation), guards, covers and shields are used to protect potentially hazardous areas. - Page 17 Chapter 5 - Controls & Safety Equipment 1 - Protective Cover 2 - Cover Lock Mechanism (Also see Fig. 4) Fig. 3: Protective Cover in Operating Position (Folded Down) Cutterbar Protective Cover (Fig. 3) To raise the cover and place it in the transport position: Insert the handle-end of the special box wrench (Fig.
- Page 18 Chapter 5 - Controls & Safety Equipment TRANSPORT & OPERATING POSITION LOCKS (Fig. 6) Stop lock (Ref. 1) - When in the operating position, this lock is provided to prevent raising the cutterbar to the transport position. Transport hook-type lock (Ref. 2) - When the cutterbar is moved into the transport position, this lock is automatically engaged to prevent the cutterbar from lowering.
- Page 19 Chapter 5 - Controls & Safety Equipment PARKING LOCK (See Fig. 6) IMPORTANT: Before using the mower, BE SURE all sliding areas (Ref. 1) of the breakaway The mower is equipped with a parking lock (Fig. 6, Ref. latch mechanism are well greased and the 6) which keeps the 3-point hitch raised when the mower mechanism is operating properly.
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Page 20: Chapter 6 Operation
CHAPTER 6 OPERATION FIRST TIME OPERATION START - UP WARNING WARNING If this is the first time you are using the ma- BE SURE ALL factory - installed guards and chine, DO NOT start, operate or service it until shields are in place and properly secured BE- you have read and understand the contents of FORE starting the tractor engine. -
Page 21: Adverse Field Conditions
Chapter 6 - Operation ADVERSE FIELD CONDITIONS Be sure the cutting knives can pivot if an obstruc- tion is hit. WARNING Use extra caution in fields that may contain rocks. Use a slower ground speed and tilt cut- terbar back towards horizontal. Use of option- al v-type knives should be considered. -
Page 22: Chapter 7 Adjustments
CHAPTER 7 ADJUSTMENTS CUTTING HEIGHT ADJUSTMENT The DM1162 and DM1165 disc mowers have been designed and factory adjusted to function properly (Fig. 9) under most field operating conditions. However, due to the wide range of operating conditions that could be The cutting height can be changed by tilting the encountered, additional adjustments may be required. - Page 23 Chapter 7 - Adjustments DRIVE BELT TENSION (Fig. 10) The belts MUST be properly tensioned at all times to prevent slipping. Loose belts will wear out faster and cause poor cutting. To tighten the belts: Use the 18 mm box wrench (Ref. 1 - provided with the mower) to turn the adjustment bolt until the spacer tube (Ref.
- Page 24 Chapter 7 - Adjustments GROUND PRESSURE ADJUSTMENT (Fig. 13) The amount of tension on the compensating spring (Ref. 1) determines the mower ground pressure. The ground pressure can be increased or decreased by making the distance (Ref. 2) between the lock nut (Ref. 3) and the center of the anchor pin longer or shorter, respectively.
- Page 25 Chapter 7 - Adjustments Notes Printed in U.S.A. 909793/BP0805...
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Page 26: Chapter 8 Lubrication
CHAPTER 8 LUBRICATION GENERAL INFORMATION WARNING NEVER attempt to lubricate the machine when any part of the unit is in motion. ALWAYS BE SURE to exercise the MANDATORY SAFETY SHUTDOWN PROCEDURE (page 8), BEFORE lubricating the machine. Proper lubrication of the disc mower will prevent excessive part wear and early failure. - Page 27 Chapter 8 - Lubrication GREASING IMPORTANT: The oil in the cutterbar MUST be changed after the first 10 hours of operation. IMPORTANT: Grease all fittings at the intervals The cutterbar should be checked daily for oil drips and listed, before and after storage, and as noted. Use dust accumulation around the seals.
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Page 28: Chapter 9 Service
When a wear groove deeper than 1/8” (3mm) has certain service routines should only be carried out formed on the bearing shoulder of the knife bolt by (or under the direction of) an authorized Gehl (Ref. 2). equipment dealer. When wear on the bolt head reaches the contact CUTTERBAR area of the knife (Ref. - Page 29 NOT be worn oval by more than 1/16” (2 mm). reusing. See Fig. 18, Ref. 3. Torque locknuts to 90 ft.-lbs. (120 Nm). WARNING Use ONLY genuine Gehl service parts. IMPORTANT: To ensure proper knife retention, the retaining hardware MUST be replaced after having been removed five times.
- Page 30 Chapter 9 - Service Disc Removal & Replacement (Figs. 19, 20 & 21) NOTE: Place a block of wood between the discs so the discs will NOT rotate when removing the mounting hardware. Left Disc Remove four self-locking cap screws (Fig. 21, Ref.
- Page 31 For safety reasons, service on the necessary, remove the drive(s) from the disc mower and telescoping drives should ONLY take them to your dealer. performed by (or under the direction of) an authorized Gehl equipment dealer. Printed in U.S.A. 909793/BP0805...
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Page 32: Preparing For Field Operation
CHAPTER 10 PREPARING FOR FIELD OPERATION TRACTOR REQUIREMENTS tighten the eight cap screws (Ref. 2) to 90 ft.-lbs. (120 Nm) torque. The tractor used to operate the disc mower MUST have: NOTE: The stop chain (Fig. 22, Ref. 4) is pro- A 540 RPM PTO. -
Page 33: Attaching Mower To Tractor
Chapter 10 - Preparing For Field Operation ATTACHING MOWER TO TRACTOR Clean all paint from the hitch pins. Refer to Fig. 24. Back the tractor to the mower and attach the lower links to the hitch pins. Secure links with lynch pins (Ref. 1) provided. 1 - Retainer 2 - Parking Lock Fig. -
Page 34: Pto Shaft
Chapter 10 - Preparing For Field Operation For Tractors without 3-Point Hitch IMPORTANT: When the PTO driveline is in its Hydraulic Position Control maximum extended position, the drive tubes MUST overlap a minimum of 10″ (250 mm). Also, Refer to Fig. 27. the PTO MUST BE short enough to prevent bottoming out (see the PTO sizing section, below). - Page 35 Chapter 10 - Preparing For Field Operation Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î 1 - Tractor PTO Shaft 6 - Mower-half PTO Yoke 2 - Disc Mower Input Shaft 7 - Desired Location of Tractor-half Drive Tube 3 - Guard Tube when PTO is Fully Retracted...
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Page 36: Chapter 11 Transporting
CHAPTER 11 TRANSPORTING TRANSPORT LOCK IMPORTANT: ALWAYS position the parking lock in the upper position while transporting or To transport the mower on the highway or from one field operating the disc mower. to another, proceed as follows: Disengage the PTO drive and wait for all move- ment to stop. - Page 37 Chapter 11 - Transporting To place the cutterbar into the operating position: Keep pulling on the rope while using the tractor hydraulic control to lower the cutterbar to the hori- Using the tractor hydraulic control, raise the cut- zontal position. terbar slightly (to free the hook lock) while pulling Let go of the rope and bring the cutterbar up until on the rope to release the hook lock (Ref.
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Page 38: Chapter 12 Storage
CHAPTER 12 STORAGE AFTER STORING After the harvesting season is over, store the disc mower in a dry place where it is not exposed to weather or After taking the disc mower out of storage and before the start livestock. of the harvesting season, carefully check the machine over BEFORE STORING and make the following inspections and preparations:... -
Page 39: Chapter 13 Troubleshooting
CHAPTER 13 TROUBLESHOOTING NOTE: This Troubleshooting guide presents problems, causes and suggested remedies beyond the ex- tent of loose, worn or missing parts and it was developed with the understanding that the machine is in otherwise good operating condition. Refer to the index at the back of this manual for chapter and sectcion page references. -
Page 40: Set-Up & Assembly
CHAPTER 14 SET - UP & ASSEMBLY UNCRATE UNIT from the front cover of the gearbox (Ref. 2) where the bushing makes contact. The DM1162 or DM1165 disc mowers are shipped from the factory in two bundles consisting of two main frames and two cutterbars. - Page 41 Chapter 14 - Set-up & Assembly Break-away Latch Installation Refer to Fig. 36. To obtain the correct initial belt tension, use the 18 mm box wrench (Ref 1. — in- Refer to Fig. 34. Use two pins (Ref. 4) and four roll cluded with the mower) to turn the adjustment bolt pins (Ref.
- Page 42 Chapter 14 - Set-up & Assembly Protective Cover Frame Installation Refer to Fig. 39. Use two 8 x 40 mm roll pins (Ref. 3) to attach the compensating spring (Ref. 1) to the Refer to Fig. 38. Making sure the mating surfaces pin (Ref.
- Page 43 Chapter 14 - Set-up & Assembly Outer Disc Installation NOTE: Use a 1 mm thick shim plate (Ref. 4) be- tween the disc and the hub ONLY if the clearance 10. Refer to Fig. 41. Position the outer disc assembly (Ref.
- Page 44 Chapter 14 - Set-up & Assembly Outer Swath Wheel Installation 13. The angular position of the swath wheel deter- mines the flow of the cut crop towards the rear. For 12. Refer to Fig. 42. Loosely install the swath wheel most working conditions and crops, the swath assembly (Ref.
- Page 45 Chapter 14 - Set-up & Assembly Protective Cover Installation Front 1 - Front Safety Bar 9 - Plug 2 - Hinge (1 of 3) 10 - Protective Cover 3 - M10 x 25 mm CB (10 used) 11 - Stop Rod 4 - M10 LN (10 used) 12 - Locking Device (Preassembled at the Factory) 5 - M12 x 75 mm CS (3 used)
- Page 46 Chapter 14 - Set-up & Assembly Transport Position Stop Bumper 17. Install the rear safety bar (Ref. 8) with five car- riage bolts (Ref. 3) and five lock nuts (Ref. 4). Installation 18. Install the plug (Ref. 9) on the rear safety bar (Ref. 21.
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Page 47: Optional Equipment & Accessories
CHAPTER 15 OPTIONAL EQUIPMENT & ACCESSORIES SIDE DEFLECTOR KIT (after serial V-TYPE KNIVES number DM1162-7909 and V-Type knives are available for better cutting in certain DM1165-9875) crop or field conditions. Order part number P156027 for a packet of 12 knives. A side deflector kit is available to improve the flow of crop between the outer cone and swath wheel when mowing in difficult conditions such as dense and down... -
Page 48: Chapter 16 Decal Locations
126354 Decal - Proper Knives position and alignment. Peel the other portion of the 144017 Decal - 1162 & Colorbar backing paper off slowly while applying hand pressure 142364 Decal - 1165 & Colorbar 142375 WARNING - Parking Mower to smooth out the decal surface. - Page 49 Chapter 16 - Decal Locations Printed in U.S.A. 909793/BP0805...
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Page 50: Index
Index Operator’s Manual, storing, 2 Optional Equipment & Accessories, 45 Adjustments, 20–23 V-Type knives, 45 Optional equipment & accessories, Side deflector kit After serial number DM1162-7909 and DM1165-9875, Capacities, 3 Checklists, 5–7 Before serial number DM1162-7910 and Controls & Safety Equipment, 14–17 DM1165-9876, 45 Cutterbar, 26 Preparing for Field Operation, 30–33... -
Page 51: Torque Specifications
TORQUE SPECIFICATIONS NOTE: Use these torque values when tightening GEHL hardware (excluding: locknuts and self - tap- ping, thread forming and sheet metal screws) unless specified otherwise. All torque values are in Lb - Ft, except those marked with an * which are Lb-In. - Page 52 CONTACT YOUR DEALER OR THE SERVICE DEPARTMENT OF GEHL COMPANY BEFORE STARTING OR CONTINUING OPERATION. Gehl Company 143 Water Street, P.O. Box 179, West Bend, WI 53095-0179 U.S.A. 909793/BP0805 2001, 2005 GEHL Company. All rights reserved. Printed in U.S.A.