• Cat 257 Throttle Cable
• Cat 257b Owners Manual

. MAINTENANCE INTERVALS Operation and Maintenance Manual Excerpt ® ® © 2010 Caterpillar All Rights Reserved. SEBU8386-03 January 2011 Operation and Maintenance Manual 247B2 and 257B2 Multi Terrain Loaders MTL5075-Up (247B2 Machine) SLK7300-Up (257B2 Machine) SAFETY.CAT.COM. SEBU8386-03 Maintenance Section Maintenance Interval Schedule Windows - Clean.152 i04193489 Maintenance Interval Schedule Every 10 Service Hours or Daily SMCS Code: 7000 Air Cleaner Dust Valve - Clean/Inspect.114 Axle Bearings - Lubricate.114 Ensure that all safety information, warnings, and Backup Alarm - Test. SEBU8386-03 Maintenance Section Maintenance Interval Schedule Every 1000 Service Hours or 6 Months Rollover Protective Structure (ROPS) and Falling Object Protective Structure (FOPS) - Inspect.

145 Every 1000 Service Hours or 1 Year Sprocket Sleeve - Inspect.148 Every 2000 Service Hours Refrigerant Dryer - Replace. SEBU8386-03 Maintenance Section Air Cleaner Dust Valve - Clean/Inspect i03318742 i02772986 Air Cleaner Dust Valve - Axle Bearings - Lubricate Clean/Inspect SMCS Code: 3282-086-BD SMCS Code: 1051-571-VL Service the air filter elements when the alert indicator for air filter restriction lights. Refer to Operation and Maintenance Manual, “Alert Indicators”. SEBU8386-03 Maintenance Section Battery or Battery Cable - Inspect/Replace i03659214 i01957641 Battery or Battery Cable - Belts - Inspect/Adjust/Replace Inspect/Replace SMCS Code: 1357-025; 1357-040; 1357-510 SMCS Code: 1401-040; 1401-510; 1401-561; If a new belt is installed, check the belt adjustment 1402-040. SEBU8386-03 Maintenance Section Blade Frame - Adjust Table 31 i02549571 Blade Frame - Adjust Belt Tension Belt Tension Initial Used SMCS Code: 6060-025-BG 534 ± 22 N (120 ± 5 lb) 400 ± 44 N (90 ± 10 lb) Height Adjustment 5.

SEBU8386-03 Maintenance Section Bogie and Idler - Inspect/Replace Trunnion Joint i03318544 Bogie and Idler - Note: The trunnion is a dry joint. Adding grease to Inspect/Replace the trunnion simply attracts abrasive particles. The tightness of the joint should be monitored. Shims should be removed when the joint becomes too SMCS Code: 4159-040. SEBU8386-03 Maintenance Section Bogie and Idler - Inspect/Replace Table 32 Bogie Wheels and Idler Wheels Wear Limits Minimum Width Minimum Thickness 254 mm (10 inch) 48 mm (1.9 inch) 3 mm (0.12 inch) 358 mm (14 inch) 48 mm (1.9 inch) 3 mm (0.12 inch) Loosen the Track Idler wheels.

SEBU8386-03 Maintenance Section Bucket Cutting Edges - Inspect/Replace Bogie wheels 6. Install a new cutting edge, if both edges are worn. Install the bolts. Remove the blocks that are under the bucket. After a few hours of operation, check the bolts for proper torque. If it is necessary to replace fuses frequently, an electri- 3.

Remove the seal from the cover and inspect the cal problem may exist. Contact your Caterpillar dealer seal. If the seal is damaged replace the seal. Remove the air filter element from the cover and clean the filter element with low pressure air. SEBU8386-03 Maintenance Section Circuit Breakers and Fuses - Reset/Replace g01430673 Illustration 107 Fuses and Relays.

Fuses (19) Interlock ECM. (2) Finger Trigger for the Work Tool (20) Beacon. (3) Front Work Lights (21) Gauges.

This could result in damage to cooling system compo- nents. If Caterpillar products are not available and com- mercial products must be used, make sure they have passed the Caterpillar EC-1 specification for pre-mixed or concentrate coolants and Caterpillar. Replace the thermostat. See Operation and Maintenance Manual, “Cooling System Water Temperature Regulator - Replace” for the process for replacing the thermostat. Add the coolant solution.

Refer to Operation and Maintenance Manual, “Capacities - (Refill)”. Refer to Special Publication, SEBU6250, “Caterpillar Machine Fluids Recommendations”. Then loosen cap slowly to relieve the pressure. G00956179 Illustration 114 When a Caterpillar Extended Life Coolant is used, Typical Example an extender must be added to the cooling system periodically. Note: The sight gauge for the coolant level is located on the right side of the engine compartment on 1. “Access Doors and Covers” for the location of the For additional information about coolant analysis, see service points.

Special Publication, SEBU6250, “Caterpillar Machine Fluids Recommendations” or consult your Caterpillar dealer. Pressurized system: Hot coolant can cause seri- i03880006 ous burn. To open cap, stop engine, wait until ra- Cooling System Coolant diator is cool. Submit the sample for Level 2 analysis. For additional information about coolant analysis, see Special Publication, SEBU6250, “Caterpillar Machine Fluids Recommendations” or consult your Caterpillar dealer. I03880033 Cooling System Level - Check. Remove the two bolts (3) from the thermostat housing assembly.

Remove the thermostat Caterpillar engines incorporate a shunt design housing assembly. Cooling system. It is mandatory to always operate the engine with a thermostat. Never service the air cleaner when the engine is run- ning, to avoid engine damage. NOTICE Caterpillar recommends certified air filter cleaning ser- vices that are available at Caterpillar dealers. The Caterpillar cleaning process uses proven procedures g00101864 to assure consistent quality and sufficient filter life.

SEBU8386-03 Maintenance Section Engine Air Filter Primary Element - Clean/Replace Note: Do not use a primary air filter element that has any tears and/or holes in the filter material. Do not use a primary air filter element with damaged pleats, gaskets or seals. SEBU8386-03 Maintenance Section Engine Air Filter Secondary Element - Replace 10.

Start the engine. The alert indicator for air filter restriction should turn off. If the alert indicator continues to light, replace the secondary air filter. Refer to Operation and Maintenance Manual, “Engine Air Filter Secondary Element - Replace”. SEBU8386-03 Maintenance Section Engine Compartment - Inspect/Clean g01433098 g01264593 Illustration 129 Illustration 130 12. Rotate the cover clockwise and latch the cover. Remove any debris or dirt from the engine compartment.

If necessary, remove the 13. Close the engine access door. Access panel in order to clean out the engine compartment. Refer to Special Publication, NENG2500, “Caterpillar Dealer Service Tool Catalog” for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. Use the index marks as a guide. Note: You may need to use a Caterpillar strap wrench, or another suitable tool, in order to turn the filter to the amount that is required for final installation.

SEBU8386-03 Maintenance Section Engine Valve Lash - Check 10. Stop the engine and allow the oil to drain back into the oil pan. Fill the crankcase to the “FULL” mark (4) on the oil level gauge (1). Do not exceed the “FULL”.

Check the drained oil for metal chips or for particles. If there are any chips or particles, consult your Caterpillar dealer.

Note: Dispose of drained fluids according to local regulations. Clean the plugs and inspect the plugs. Replace a worn plug or a damaged plug.

Refer to Special Publication, NENG2500, “Caterpillar torque of 27 ± 1 Nm (20 ± 0.7 lb ft). Dealer Service Tool Catalog” for tools and supplies suitable to collect and contain fluids on Caterpillar 7.

Repeat the procedure for the other final drive. Dealer Service Tool Catalog” for tools and supplies nent containing fluids. Suitable to collect and contain fluids on Caterpillar products. Refer to Special Publication, NENG2500, “Caterpillar Dealer Service Tool Catalog” for tools and supplies Dispose of all fluids according to local regulations and.

SEBU8386-03 Maintenance Section Fuel System Priming Pump - Operate 3. Close the drain valve by hand. Do not tighten the 2. Push down on the top of the fuel priming pump drain valve with a tool.

Damage to the valve or plunger and release the fuel priming pump plunger to the seals may occur. Refer to Special Publication, NENG2500, “Caterpillar Tools and Shop Products Guide” for tools and supplies suitable to collect and contain fluids on Caterpillar g00928025 products. Illustration 145 location of the drain plug for the 247 and the 257 Dispose of all fluids according to local regulations and. SEBU8386-03 Maintenance Section Hydraulic System Oil - Change The machine should be on level ground. Lower the bucket to the ground and apply slight downward pressure. Engage the parking brake and stop the engine. Keep the armrest lowered.

Turn the engine start switch key to the ON position. Use the index marks as a guide. G00926534 Note: You may need to use a Caterpillar strap Illustration 151 wrench, or another suitable tool, in order to turn 2. Remove the hydraulic tank filler cap. SEBU8386-03 Maintenance Section Hydraulic System Oil Level - Check i01957050 i02920120 Hydraulic System Oil Level - Hydraulic System Oil Sample Check - Obtain SMCS Code: 5095-535-FLV SMCS Code: 5050-008; 7542-008 Open the rear access door.

Refer to Operation and Maintenance Manual, “Access Doors and Covers” for information about the rear door. Small amounts of debris may be found in the filter element. This could be caused by friction and by normal wear. Consult your Caterpillar dealer in order to arrange for further analysis if an excessive amount of debris is found. SMCS Code: 1353-070-KO Note: Do not weld on the quick coupler without consulting your Caterpillar dealer. The radiator is located at the rear of the machine above the engine compartment.

Clean the quick coupler prior to inspection in order to properly inspect the quick coupler. Refer to Service Manual, SENR5664, “Air Note: There is a total of four retaining bolts for the Conditioning and Heating R-134a For All Caterpillar ROPS. There is a total of eight retaining bolts for the Machines” for the proper procedure to change the FOPS 2. FOPS for damaged bolts or missing bolts. Replace any damaged bolts or missing bolts with original Consult your Caterpillar dealer for the replacement of equipment parts only. The seat belt and the mounting hardware. Operate the machine on a rough surface.

SEBU8386-03 Maintenance Section Sprocket - Inspect i03890329 Sprocket - Inspect SMCS Code: 4164-040 Note: Operating the machine in conditions that are muddy or sandy will cause accelerated wear on the sprocket and other undercarriage components. It is important to clean the undercarriage of the machine daily in order to maximize component life. SEBU8386-03 Maintenance Section Sprocket Sleeve - Inspect Sleeves and Rings 4. Measure thickness (A) for the outer sleeves. If the thickness of the outer sleeves measures less than 3 mm (0.12 inch), replace the sleeves. Sleeves that do not meet the minimum thickness or sleeves that do not turn freely may cause unnecessary wear on the drive lugs on the rubber track.

SEBU8386-03 Maintenance Section Tilt Cylinder Bearings and Bucket Linkage Bearings - Lubricate g01394383 g00955895 Illustration 167 Illustration 168 Check the outer sleeves in order to ensure that the Note: Lubricate the fittings with the loader lift arms in sleeves rotate freely. If the sleeves do not rotate the fully lowered position. SEBU8386-03 Maintenance Section Track (Rubber) - Inspect/Adjust NOTICE Do not overtighten the tracks. Tracks that are too tight can cause premature failure of the tracks. Tracks that are too tight can cause power loss and bearing fail- ures. Tracks that are too loose increase the possibility of the track derailing or the drive lugs mis-feeding on the drive sprocket.

SEBU8386-03 Maintenance Section Track (Rubber) - Remove/Replace 6. Recheck the track tension. Detension the track.

Refer to Operation and Maintenance Manual, “Track (Rubber) - 7. Check the hoses. Ensure that there is no tension Inspect/Adjust”. In the hoses. Ensure that the hoses are not kinked. Tighten the hose clamps at the frame.

(If Equipped) the side windows. SMCS Code: 7306-544-KE NOTICE When operating in freezing temperatures, use Caterpillar nonfreezing window washer solvent or equivalent.

System damage can result from freezing. G01026875 Illustration 175 1.

Release the latch (2) in order to remove the window (1). SEBU8386-03 Maintenance Section Work Tool - Lubricate i02728710 Work Tool - Lubricate SMCS Code: 6700-086 Multipurpose Bucket g00647988 Illustration 178 Apply lubricant to the two fittings for the grapple cylinder.

Cat 257 Throttle Cable

There are six grease fittings. Industrial Grapple Tools g00534457 Illustration 176 Apply lubricant to the grease fitting (1) for the pivot pin of the apron.

SEBU8386-03 Maintenance Section Work Tool - Lubricate There are eight grease fittings. Grapple Rake g00648037 Illustration 183 Apply lubricant to the grease fitting on the horizontal pivot point of the blade. G01368386 Illustration 181 Apply lubricant to the four grease fittings for the grapple cylinders. (2) for wear and for damage.

Inspect lower angled plate (3) and ensure that the plate is not bent or otherwise damaged. If any wear is suspected or any damage is suspected, consult your Caterpillar dealer before you use the work tool.

Cat 257b Owners Manual

G01073259 Illustration 186 Apply lubricant to the grease fitting on both ends of.