CASE 1188 1188C 1188P Crawler and WHEELED Excavator SCHEMATIC Service Manual

Copyright  2000 Case France Printed in France Case Cre 7-57741GB March 2000 CRAWLER AND WHEELED EXCAVATORS 1188 SCHEMATIC SET TABLE OF CONTENTS SECTION SECTION No. REFERENCE No. Safety, general information and torque specifications .................................................. 1001 7-56942GB Specifications Crawler excavators ....................................................................................... 1002 7-79021GB Wheeled excavators ..................................................................................... 1002 7-79031GB Electrical schematics Crawler excavators - before November 1999 ............................................... 4001 7-57590GB Crawler excavators - November 1999 and after ........................................... 4001 7-26570GB Wheeled excavators - before November 1999 ............................................. 4001 7-57580GB Wheeled excavators - November 1999 and after ......................................... 4001 7-26540GB Electronic and troubleshooting system Crawler excavators ....................................................................................... 4002 7-80031GB Wheeled excavators ..................................................................................... 4002 7-80051GB Tests, adjustments and hydraulic schematics Crawler excavators ....................................................................................... 8001 7-57630GB Wheeled excavators ..................................................................................... 8001 7-57620GB NOTE: CASE Company reserves the right to make changes in the specification and design of the machine without prior notice and without incurring any obligation to mod- ify units previously sold. The description of the models shown in this manual has been made in accordance with the technical specifications known as of the date of design of this document.

1001-2 Cre 7-56942GB Issued 11-99 TABLE OF CONTENTS SAFETY..................................................................................................................................................................... 3 TWIN WHEELS ......................................................................................................................................................... 5 Safety rules ........................................................................................................................................................... 5 Safety instructions ................................................................................................................................................. 5 GENERAL INFORMATION ....................................................................................................................................... 6 CORRECT USE OF TORQUE WRENCHES ............................................................................................................ 7 HARDWARE TIGHTENING ORDER ........................................................................................................................ 8 STANDARD SCREW A TORQUE SPECIFICATIONS.............................................................................................. 9 Correct screw identification ................................................................................................................................... 9 METAL CAP REFERENCES................................................................................................................................... 10 PLASTIC PLUG AND CAP REFERENCE CHART ................................................................................................. 11

1001-3 Cre 7-56942GB Issued 11-99 SAFETY To avoid all risks, always follow the safety notes contained in this section and throughout this manual. Put the warning tag shown below on the key for the keyswitch when servicing or repairing the machine. One warning tag is supplied with each machine. Additional tags, Part Number 321-4614, are available from your service parts supplier. PDG0328 WARNING: This symbol means WARNING ! BE VIGILANT ! YOUR SAFETY IS AT RISK. The message that follows the symbol contains important safety information. Read it carefully. Be sure you understand the possible risks of injury or even death. ! WARNING: Read the Operator’s Manual carefully and make sure you understand how to operate the controls correctly. WARNING: Never operate the machine and attachment controls unless you are seated in the operator’s seat. If you are not in the operator’s seat, you run the risk of serious injury. WARNING: The machine is built to carry the operator only. Do not allow passengers to ride on the machine. ! ! ! WARNING : Prior to starting up the engine read the safety messages contained in the operator’s manual carefully. Read all safety stickers on the machine. Have people move back from the machine. Learn how to use the controls before starting up the machine. It is your responsibility to follow the manufacturer’s instructions on how to operate and maintain the machine. It is your responsibility to follow applicable rules and regulations. Service and Operator’s Manuals are available from your J.I. Case Dealer. WARNING: If you wear loose clothing or if you omit to use safety equipment for your work, you risk injury. Always wear clothes that do not risk getting caught in the machine. Other safety equipment may be necessary, in particular : helmets, safety shoes, ear plugs, safety glasses, protection mask, thick gloves and reflecting clothes. WARNING: When working close to the fan with the engine running, avoid wearing loose clothing and operate with extreme caution. WARNING: When checking the hydraulic cir- cuits, follow procedures to the letter. DO NOT CHANGE procedures. ! ! ! !

1001-4 Cre 7-56942GB Issued 11-99 WARNING: Prior to operating the hydraulic cylinders of this machine for setting or to bleed the circuit, have all people standing around the machine move away. WARNING: Wear gloves or insulated mittens when working on hot parts. WARNING: Lower all attachments to the ground or rest them on stands before carry- ing out maintenance jobs. WARNING: Fine sprays of hydraulic oil under pressure can penetrate the skin and cause serious infection. If hydraulic oil under pressure penetrates the skin, see a doctor immediately. Maintain all hoses and pipes in good condition. Make sure that all connec- tions are properly tightened. Change all hoses or pipes that have been damaged or that are suspect. DO NOT CHECK for leaks with bare hands. Use a piece of cardboard or wood. WARNING: To remove a hardened pin such as a pivot pin, or a hardened shaft, use a soft head hammer (brass or bronze) or a brass or bronze strip and a steel head hammer. WARNING: When using a hammer to remove or reassemble pivot pins, or when using compressed air, or when using a grinder make sure to wear safety glasses that protect the eyes from all sides. WARNING: Use proper lifting/hoisting equipment to lift wheels or tracks and always work on safe ground. Prevent the machine from moving using correct safety chocks. ! ! ! ! ! ! ! WARNING: When performing maintenance or repair operations on the machine, make sure that the work shop floor, the cab and the steps of the excavator are free from oil, water, grease, tools etc. Use oil absorbing material or rags as necessary. Always think safety. WARNING: Certain components of this machine are very heavy. Use hoisting tools or additionnal assistance as recommended in this manual. WARNING: Exhaust fumes can cause death. If it is necessary to start up the engine in a closed building, evacuate exhaust fumes using an exhaust pipe extension. Open the doors and let fresh air into the building. WARNING: When battery liquid is frozen, the battery can explode if : (1) you try to charge the battery or (2) you try to start the engine by connecting an auxiliary power source. To prevent battery electrolyte from freezing keep the battery fully charged. If you do not follow these instructions, you or others nearby may be injured. WARNING: Batteries contain acid and explo- sive gases. A spark, a flame or an improper cable connection may cause an explosion. For proper connection of cables to the battery of this machine see the Operator’s Man- ual. If you do not follow these instructions, you risk severe injury. ! ! ! ! !

1001-5 Cre 7-56942GB Issued 11-99 TWIN WHEELS Safety rules Safety instructions • Use appropriate, good quality tools to disassemble the various wheel components. Never use a hammer. Use a rubber, plastic or copper-faced mallet. IMPORTANT: Never remove the inner tyre valve extension, as this will be necessary afterwards for inflating and deflating the tyre. IMPORTANT: If the valve or the valve extension are no longer accessible, take the necessary precautions and then, imperatively, puncture the tyre. • Use suitable grease to facilitate the installation and removal of the tyre. • Never re-inflate a tyre on the machine which has been used at a pressure lower than 5.6 bar. • Check the various components: tyre, rim, shoulder, retaining ring and replace any defective items. • Never reuse a retaining ring which is distorted or rusty. WARNING: In all cases, before removing twin wheels, always deflate both tyres completely. WARNING: If a tyre bursts it can cause serious injury. Check tyres regularly to see that they are in good condition and always be sure to inflate them to the correct pressure. WARNING: Never face a tyre when checking pressure or adding air. Always stand in front of the tread. Use an inflation cage if the wheel has been removed from the machine. Make sure all people standing in the area move well away. WARNING: Never weld near a tyre.If this can not be avoided, it is mandatory to remove the tyre before performing any welding operations. WARNING: Make sure that all decals on the machine are perfectly legible, clean them regularly and replace any decals which are damaged, missing or painted over, with new ones. ! ! ! ! !

1001-6 Cre 7-56942GB Issued 11-99 GENERAL INFORMATION CLEANING Clean all metal parts except bearings with white spirit or steam. Do not use caustic soda when steam cleaning. After cleaning, dry and lubricate all parts. Clean hydraulic lines with compressed air. Clean bearings with kerosene, then dry them and lubricate them. INSPECTION Check all parts when disassembled. Change all parts showing wear or damage. Scratches that are not too deep can be removed by honing or with a rag dipped into buffing compound. A full visual inspection to detect wear and pitting and subsequent changing of parts will prevent premature failure. BEARINGS Check that bearings rotate freely. If their adjustment is too loose or if they do not run regularly, change them. Wash bearings with a good solvent or kerosene and let them dry. DO NOT DRY BEARINGS WITH COMPRESSED AIR. NEEDLE BEARINGS Before inserting needle bearings into a bore, remove all metal particles from the edge of the bore. Prior to mounting bearings with a press, coat the inside and the outside of the bearing with vaseline. GEARS Check all the gears for wear or damage. Change worn or damaged gears. SEAL RINGS, O-RINGS, GASKETS Always use new seal rings. O-rings and gaskets. Coat sealing rings and O-rings with vaseline. SHAFTS Check all shafts showing signs of wear or damage. Check that the surface of a shaft running in a bearing is not damaged. SPARE PARTS Always use original CASE spare parts. To order spare parts, see the Spare Parts Catalogue to indi- cate the proper reference of original CASE spare parts. Failures caused by the use of parts that are not original CASE spare parts are not covered by the warranty. LUBRICATION Use only oils and lubricants specified in the Opera- tor’s and Service Manuals. Failures due to the use of oils and lubricants not specified are not covered by the warranty.

1001-7 Cre 7-56942GB Issued 11-99 CORRECT USE OF TORQUE WRENCHES TORQUE WRENCHES PDG0315 CORRECT USE a - Hold the wrench by the handle provided. b - When tightening, always keep the wrench perpendicular to the screw. c - Keep one hand on the leverage point handle on the wrench. d - Tighten progressively in one movement. e - Position a correctly dimensioned socket or open-ended wrench on the flats of the screw head. PDG0316 Open-ended wrench Manipulator Leverage point handle 1/2” square insert Setting pointer Adjusting lever Extension SJ214, for doubling capacity of S203 wrenches NO NO HAND NO

1001-8 Cre 7-56942GB Issued 11-99 HARDWARE TIGHTENING ORDER TORQUE WRENCHES PDG0317 INITIAL TORQUE a - Torque wrench. - Follow the correct order of proce- dure when tightening. - Cross or diagonal pattern tightening. PDG0318 FINAL TORQUE Always tighten in clockwise order. PDG0319

You're Reading a Preview

CASE 1188 1188C 1188P Crawler and WHEELED Excavator SCHEMATIC Service Manual

Description

Reviews

Q&A

Recently Viewed