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[Page 1] Caterpillar C7
® © 2010 Caterpillar All Rights Reserved ® MAINTENANCE INTERVALS Operation and Maintenance Manual Excerpt .
[Page 2] Caterpillar C7
SEBU8083-09 March 2009 Operation and Maintenance Manual C7 and C9 On-highwa y Engines MFF1-Up (Engin e) C7S1-Up (Engine) C9S1-Up (Engine) C7W1-Up ( Engine) C9W1-Up (Engine) Includes C9 Mass Transit Bus Engines SAFETY.CAT.COM .
[Page 3] Caterpillar C7
144 SEBU8083-09 Maintenance Section Maintenance Interval Schedule i02871972 Maintenance Interval Schedule (C7 En gines w ith Shallow Sum ps ) SMCS Code: 1000; 7500 S/N: C7S1-Up Ensure that all safety i nformation, warnings, and instructions are read .
[Page 4] Caterpillar C7
SEBU8083-09 145 Maintenance Section Maintenance Interval Schedule Daily Cooling System Coolant Level - Check . 177 Engine Air Cleaner Service Ind icator - Inspect . 195 .
[Page 5] Caterpillar C7
146 SEBU8083-09 Maintenance Section Maintenance Interval Schedule Engine Valve Lash - Inspect/Adju st . 213 Starting Motor - Inspect .
[Page 6] Caterpillar C7
SEBU8083-09 147 Maintenance Section Maintenance Interval Schedule i02871969 Maintenance Interval Schedule (C7 E ng ines w ith Deep Sumps) SMCS Code: 1000; 7500 S/N: C7S1-Up Ensure that all safety i nformation, warnings, and instructions are read and .
[Page 7] Caterpillar C7
148 SEBU8083-09 Maintenance Section Maintenance Interval Schedule Daily Cooling System Coolant Level - Check . 177 Engine Air Cleaner Service Ind icator - Inspect . 195 .
[Page 8] Caterpillar C7
SEBU8083-09 149 Maintenance Section Maintenance Interval Schedule Engine Valve Lash - Inspect/Adju st . 213 Starting Motor - Inspect .
[Page 9] Caterpillar C7
150 SEBU8083-09 Maintenance Section Maintenance Interval Schedule i02871975 Maintenance Interval Schedule (C9 Engin es) SMCS Code: 1000; 7500 S/N: MFF1-Up S/N: C9S1-Up Ensure that all safety information, warnings, and instructions are read and unders.
[Page 10] Caterpillar C7
SEBU8083-09 151 Maintenance Section Maintenance Interval Schedule Daily Cooling System Coolant Level - Check . 177 Engine Air Cleaner Service Ind icator - Inspect . 195 .
[Page 11] Caterpillar C7
152 SEBU8083-09 Maintenance Section Maintenance Interval Schedule PM Level 2 - Every 161 000 km (100 00 0 miles) or 56 850 L (15 000 US gal) of Fuel or 2000 Ser vice Hours or 2 Years Air Compressor - Inspect .
[Page 12] Caterpillar C7
SEBU8083-09 153 Maintenance Section ARD Nozzle - Clean i03528370 ARD Nozzle - Clean SMCS Code: 1050-070 The Effect of Fuel Selection on the Interval for Cleaning the Nozzle f or the Aftertreatment Regeneration Device (ARD Nozzle) Using a blend of bio.
[Page 13] Caterpillar C7
154 SEBU8083-09 Maintenance Section ARD Nozzle - Clean Procedure for Cleaning th e ARD Nozzle The liquid cleaner that is used to clean the nozzle for the Aftertreatment Regeneration Device (ARD) is available at your Caterpillar dealer. The cleaner is.
[Page 14] Caterpillar C7
SEBU8083-09 155 Maintenance Section ARD Nozzle - Clean g01351825 Illustration 36 The c leaning port is located on the left side of the engine to the left of the fuel filter on the C9 E ngine. The priming pum p that is shown is optional. Note: Remove.
[Page 15] Caterpillar C7
156 SEBU8083-09 Maintenance Section ARD Spark Plug - Inspect/Replace Squeeze the container in order to dispense the fluid. All of the fluid should be dispensed before the dispenser is removed from the cleaning port. Remove the dispenser and ensure .
[Page 16] Caterpillar C7
SEBU8083-09 157 Maintenance Section ARD Spark Plug - Inspect/Replace g01308813 Illustration 39 (1) Wiring harnes s (2) Spark plug 1. Remove wire harness (1) from spark plug (2). Personal injury can result from air pressure. Personal i njury can resul.
[Page 17] Caterpillar C7
158 SEBU8083-09 Maintenance Section ARD Spark Plug - Inspect/Replace 3. Use a deep well socket and a breake r bar to loosen the spark plug. If necessary, see your Caterpillar dealer for the part number of the socket. After the spark plug has been loo.
[Page 18] Caterpillar C7
SEBU8083-09 159 Maintenance Section Aftercooler Core - Clean/Test NOTICE Do not overtighten the spark plu g. The shell can be cracked and the gasket can be deformed. The met- al can deform and the gasket can be damaged. The shell can be stretched. Th.
[Page 19] Caterpillar C7
160 SEBU8083-09 Maintenance Section Air Compressor - Inspect g01212654 Illustration 40 Typical ex ample (1) Pressure relief valve If the air comp ressor pressure relief valve that is mounted in the air c ompressor cylinder head is bypassing compresse.
[Page 20] Caterpillar C7
SEBU8083-09 161 Maintenance Section AirDryer-Check Refer to the Service Manual or ref er to the OEM specifications in order to find information concerning the air compressor. Consult your Caterpillar dealer for assistance. i00863920 Air Dryer - Che.
[Page 21] Caterpillar C7
162 SEBU8083-09 Maintenance Section Battery - R eplace i02153996 Battery - R eplace SMCS Code: 1401-510 Batteries give off combustible gases which can explode. A spark can cause the combustible gas- es to ignite. This can r esult in severe personal i.
[Page 22] Caterpillar C7
SEBU8083-09 163 Maintenance Section Battery - Replace Note: Always recycle a battery. N ever discard a battery. Return used batteries to an appropriate recycling facility. 5. Remove the used battery. 6. Install the new battery. Note: Before the cable.
[Page 23] Caterpillar C7
164 SEBU8083-09 Maintenance Section Battery Electrolyte Level - Check i02601752 Battery Electrolyte Level - Ch eck SMCS Code: 1401-535 When the engine is not run for l ong periods of time or when the engine is run for short periods, the batteries may.
[Page 24] Caterpillar C7
SEBU8083-09 165 Maintenance Section Battery or Battery Cable - Disconnect i01492654 Battery or Battery Cable - Disco nnect SMCS Code: 1402-029 The battery cables or the batteries should not be removed with the battery cover in place. The bat- tery co.
[Page 25] Caterpillar C7
166 SEBU8083-09 Maintenance Section Belts - Inspect/Adjust/Replace i02719973 Belts - In spec t/Adjust/Replace SMCS Code: 1357-025; 1357-040; 1357-510 g01272337 Illustration 41 Your engine is equipped with a serpentine belt (1). For maximum engine per.
[Page 26] Caterpillar C7
SEBU8083-09 167 Maintenance Section Compression Brake - Inspect/Adjust i02768003 Comp ression Brake - Insp ect/ A dju st (Caterpillar Com p ression Bra ke) SMCS Code: 1119-025; 1119-040 S/N: MFF1-Up S/N: C9S1-Up S/N: C9W1-Up The maintenance of the Ca.
[Page 27] Caterpillar C7
168 SEBU8083-09 Maintenance Section Cooling System Coolant (DEAC) - Change i02139869 Coolin g System C o olan t (DEAC) - Cha ng e SMCS Code: 1350-070; 1395-044 Clean the cooling system and fl ush the cooling system before the recommended maintenance.
[Page 28] Caterpillar C7
SEBU8083-09 169 Maintenance Section Cooling System C oolant (DEAC) - Change 2. Open the cooling system drain val ve (if equipped). If the cooling system is not equipped with a drain valve, remove one of the drain plugs. Note: If equipped, be sure to .
[Page 29] Caterpillar C7
170 SEBU8083-09 Maintenance Section Cooling System Coolant (DEAC) - Change NOTICE Improper or incomplete rinsing of the cooling system can result in damage to copper and other metal com- ponents. To avoid damage to the cooling system, make sure to co.
[Page 30] Caterpillar C7
SEBU8083-09 171 Maintenance Section Cooling System C oolant (DEAC) - Change 3. Fill the cooling system with a mix ture of clean water and Caterpillar Fast Acting Cooling System Cleaner. Add 0.5 L (1 pint) of cleaner per 3.8 to 7.6 L (1 to 2 US gal) o.
[Page 31] Caterpillar C7
172 SEBU8083-09 Maintenance Section Cooling System Coolant (ELC) - Change 3. Check the coolant level. Maintai n the coolant level within 13 mm (0.5 inch) below the bottom of the pipe for filling. Maintain the coolant level within 13 mm (0.5 inch) to.
[Page 32] Caterpillar C7
SEBU8083-09 173 Maintenance Section Cooling System Coolant (ELC) - Change Drain Pressurized System: Hot cool ant can cause seri- ous burns. To open t he cooling system filler cap, stop the engine and wait until the cooling system components are cool.
[Page 33] Caterpillar C7
174 SEBU8083-09 Maintenance Section Cooling System Coolant (ELC) - Change 2. Close the drain valve (if equippe d). Clean the drain plugs. Install the drain plugs. For the proper torque, refer to the Specifications Manual, SENR3130, “Torque Speci�.
[Page 34] Caterpillar C7
SEBU8083-09 175 Maintenance Section Cooling System Coolant Extender (ELC) - Add 4. Clean the cooling system filler ca p. Inspect the gasket that is on the cooling system filler cap. If the gasket that is on the cooling system filler cap is damaged.
[Page 35] Caterpillar C7
176 SEBU8083-09 Maintenance Section Cooling System Coolant Extender (ELC) - Add NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, test- ing, adjusting and repair of the product. Be prepared .
[Page 36] Caterpillar C7
SEBU8083-09 177 Maintenance Section Cooling System Coolant Level - Check For more information about Cat EL C Extender, refer to Special Publication, SEBU6385, “Caterpillar On-highway Diesel Engine Fluid Recommendations”. i01197 583 Coolin g S yst.
[Page 37] Caterpillar C7
178 SEBU8083-09 Maintenance Section Cooling System Coolant Sample (Level 1) - Obtain g00103639 Illustration 43 Typical filler cap gaskets 3. Clean the cooling system filler cap and check the condition of the filler cap gaskets. Replace the cooling.
[Page 38] Caterpillar C7
SEBU8083-09 179 Maintenance Section Cooling System Coolant S ample (Level 1) - Obtain • Keep the unused sampling bottles stored in plastic bags. • Obtain coolant samples directly from the coolant sample port. You should not obtain the samples f r.
[Page 39] Caterpillar C7
180 SEBU8083-09 Maintenance Section Cooling System Coolant Sample (Level 2) - Obtain i03085829 Coolin g System Coolan t Sample (Level 2) - Obtain SMCS Code: 1350-008; 1395-008; 1395-554; 7542 Note: Refer to this Operation and Maintenance Manual, “R.
[Page 40] Caterpillar C7
SEBU8083-09 181 Maintenance Section Cooling System Supplemental Coolant Additive (SCA) - Test/Add NOTICE Cooling system coolant additiv e contains alkali. To help prevent personal injury, avoid contact with the skin and the eyes. Do not drink cooling.
[Page 41] Caterpillar C7
182 SEBU8083-09 Maintenance Section Cooling System Supplemental Coolant Additive (SCA) - Test/Add Add the SCA, If Necessary NOTICE Do not exceed the recommended amount of sup- plemental coolant additive concentration. Excessive supplemental coolant a.
[Page 42] Caterpillar C7
SEBU8083-09 183 Maintenance Section Cooling System Water Temperature Regulator - Replace 4. Clean the cooling system filler ca p. Inspect the gaskets of the cooling system filler cap. If the gaskets are damaged, replace the old cooling system fill.
[Page 43] Caterpillar C7
184 SEBU8083-09 Maintenance Section Cooling System Water Temperature Regulator - Replace NOTICE Failuretoreplaceyourwaterte mperature regulator on a regularly scheduled basis could cause severe engine damage. Caterpillar engines incorporate a shunt d.
[Page 44] Caterpillar C7
SEBU8083-09 185 Maintenance Section Crankcase Fumes Fitting - Inspect/Clean i02678214 Crankcase Fumes Fitting - Inspect/C lean SMCS Code: 1317-040; 1317-070 g01345683 Illustration 44 (1) Clamps (2) Nu t (3) Fitting 1. Loosen the clamps that attach th.
[Page 45] Caterpillar C7
186 SEBU8083-09 Maintenance Section Crankcase Fumes Fitting - Inspect/Clean 3. If fitting (3) is accessible, this procedure may be performed with the fitting on the combustion head. If the fitting is not accessible, remove the fitting and use a v.
[Page 46] Caterpillar C7
SEBU8083-09 187 Maintenance Section Crankshaft Vibration Damper - Inspect i02933380 Crankshaft Vibration Dam per - Inspe ct SMCS Code: 1205-040 Damage to the crankshaft vibr ation damper or failure of the crankshaft vibration damper can increase tors.
[Page 47] Caterpillar C7
188 SEBU8083-09 Maintenance Section Cylinder Head Grounding Stud - Inspect/Clean/Tighten i02370278 Cylinder Head Grou nding Stud - Inspect/Clean/Tighten SMCS Code: 7423-040; 7423-070; 7423-079 g01182654 Illustration 45 Cylinder head grounding stud In.
[Page 48] Caterpillar C7
SEBU8083-09 189 Maintenance Section Diesel Particulate Filter - Clean i03536467 Diesel Particulate Fi lter - Cle an SMCS Code: 1091-070 Note: Caterpillar recommend s the use of the Caterpillar ash service tool. Caterpillar does not endorse the use of.
[Page 49] Caterpillar C7
190 SEBU8083-09 Maintenance Section Diesel Particulate Filter - Clean Exceptions to Minimum Maintenan ce Intervals A number of vehicle applications impose certain restraints on the locations of exhaust system co mponents. These applications are prima.
[Page 50] Caterpillar C7
SEBU8083-09 191 Maintenance Section Diesel Particulate Filter - Clean Note: This minimum maintenance i nterval is only valid for engines that are built in 2007, 2008, or 2009. Note: The following vehicles a re not qualified for reduced maintenance i.
[Page 51] Caterpillar C7
192 SEBU8083-09 Maintenance Section Engine - Clean i01646701 Engine - Clean SMCS Code: 1000-070 Personal injury or death can result from high volt- age. Moisture c an create paths of electrical conductiv- ity. Make sure that the electrical system is .
[Page 52] Caterpillar C7
SEBU8083-09 193 Maintenance Section Engine Air Cleaner Element (Dual Element) - Clean/Replace i02353651 Engine Air C le aner Element (Dual Eleme nt) - Clean/Repl ace (If Equip ped) SMCS Code: 1054-037; 1054-5 10 See this Operation and Maintenance Man.
[Page 53] Caterpillar C7
194 SEBU8083-09 Maintenance Section Engine Air Cleaner Element (Dual Element) - Clean/Replace g00736431 Illustration 46 (1) Cov er (2) Primary air cleaner elem ent (3) Secondar y air cleaner element (4) Air inlet for the turbocharger 1. Remove the co.
[Page 54] Caterpillar C7
SEBU8083-09 195 Maintenance Section Engine Air Cleaner Element - Clean/Replace i00857000 Engine Air Cleaner Element - Clean/Rep lace SMCS Code: 1054-070; 1054-510 NOTICE Never service the air cleaner element with the engine running since this will al.
[Page 55] Caterpillar C7
196 SEBU8083-09 Maintenance Section Engine Air Cleaner Service Indicator - Inspect Some engines are equipped with a d ifferential gauge for inlet air pressure. The differential gauge for inlet air pressure displays the difference in the pressure that.
[Page 56] Caterpillar C7
SEBU8083-09 197 Maintenance Section Engine Air C leaner Service Indicator - Inspect • Check the movement of the yellow c ore when the engine is accelerated to the engine rated speed. The yellow core should latch approximately at the greatest vacuum.
[Page 57] Caterpillar C7
198 SEBU8083-09 Maintenance Section Engine Crankcase Breather - Clean i02333200 Engine Crankcase Breather - Clean SMCS Code: 1317-070 g01164541 Illustration 48 1. Remove the cover on breather (1). Remove the breather assembly and the seal. 2. Wash th.
[Page 58] Caterpillar C7
SEBU8083-09 199 Maintenance Section Engine Oil Level - Check g01182634 Illustration 49 Typical configuration (1) Oil level gauge (2) Oil filler cap g00110310 Illustration 50 (Y) “A D D” m ark (X) “FU LL” ma rk NOTICE Perform this maintenanc.
[Page 59] Caterpillar C7
200 SEBU8083-09 Maintenance Section Engine Oil Level Gauge - Calibrate NOTICE Engine damage can occur if the cr ankcase is filled above the “FULL” mark on the oil level gauge (dip- stick). An overfull crankcase can cause the crankshaft to dip in.
[Page 60] Caterpillar C7
SEBU8083-09 201 Maintenance Section Engine Oil Level Gauge - Calibrate The oil level gauge markings must be verified in order to ensure that it is correct. Verify the oil level gauge markings at the first oil change. Verify the “ ADD” mark and .
[Page 61] Caterpillar C7
202 SEBU8083-09 Maintenance Section Engine Oil Level Gauge - Calibrate 8. Check the oil level on the oil leve l gauge. The oil level should be at the “FULL” mark. If the oil level is not at the existing “FULL” mark, grind off the “FULL” m.
[Page 62] Caterpillar C7
SEBU8083-09 203 Maintenance Section Engine Oil Sample - Obtain Table 17 C9 Quantity of Oil Center, Rear, and Front Sump A 24 L (25.4 qt) B 4L(4.2qt) C 2L(2.1qt) D Total Capacity of the Lubrication System for Engine Oil i01935337 Engine Oil Sample - O.
[Page 63] Caterpillar C7
204 SEBU8083-09 Maintenance Section Engine Oil Sample - Obtain • The number of hours that have accu mulated since the last oil change • The amount of oil that has been added since the last oil change To ensure that the sample is representative of.
[Page 64] Caterpillar C7
SEBU8083-09 205 Maintenance Section Engine Oil and Filter - Change i03017821 Engine Oil and Filter - Change SMCS Code: 1318-510; 1348-044 Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
[Page 65] Caterpillar C7
206 SEBU8083-09 Maintenance Section Engine Oil and Filter - Change Drain the Engine Oil After the engine has been run at the normal operating temperature, stop the engine. Attach a “DO NOT OPERATE” or a similar warning tag to the ignition keyswit.
[Page 66] Caterpillar C7
SEBU8083-09 207 Maintenance Section Engine Oil and Filter - Change 2. Cut the oil filter open with a 175-7 546 Oil Filter Cutter. Break apart the pleats and inspect the oil filter for metal debris. An excessive amount of metal debris in the oil fi.
[Page 67] Caterpillar C7
208 SEBU8083-09 Maintenance Section Engine Oil and Filter - Change 5. Install the oil filter. Tighten th eoilfilter until the oil filter gasket contacts the base. Tighten the oil filter by hand according to the instructions that are shown on the .
[Page 68] Caterpillar C7
SEBU8083-09 209 Maintenance Section Engine Oil and Filter - Change Adjustments to the Oil Change Intervals Many conditions affect the selection of an oil change interval. Proper oil change intervals are important for maintaining engine service life a.
[Page 69] Caterpillar C7
210 SEBU8083-09 Maintenance Section Engine Oil and Filter - Change Note: Caterpillar cannot guaran tee the performance of lubricants or filters that are not sold by Caterpillar. The performance guarantee of any commercially available lubricant is th.
[Page 70] Caterpillar C7
SEBU8083-09 211 Maintenance Section Engine Oil and Filter - Change Table 18 Maximum Permissible Oil Change Intervals Vehicle Applications Light Duty (1) Medium Duty (2) Heavy Duty (3) Severe Service (4) Engine Model KM (Miles) to Next Oil Change C7 E.
[Page 71] Caterpillar C7
212 SEBU8083-09 Maintenance Section Engine Storage Procedure - Check i01458399 Engine Sto rage P roce dure - Ch eck SMCS Code: 1000-535 The oil change interval may be extended to 12 months for a vehicle that is operated seasonally and placed in stora.
[Page 72] Caterpillar C7
SEBU8083-09 213 Maintenance Section Engine Valve Lash - Inspect/Adjust i00869628 Engine Valve Lash - Insp ect/Adju st SMCS Code: 1102-025 The initial valve lash adjust ment on new engines, rebuilt engines, or remanufactured engines is recommended at .
[Page 73] Caterpillar C7
214 SEBU8083-09 Maintenance Section Fan Drive Bearing - Lubricate i01771215 Fan Drive Bearing - Lu bricate SMCS Code: 1359-086-BD g00746166 Illustration 53 Typical location of the grease fitting that is for the fan drive bearing The belt guards hav .
[Page 74] Caterpillar C7
SEBU8083-09 215 Maintenance Section Fuel System - Prime i02686443 Fuel Sys tem - Prime SMCS Code: 1258-548 Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fu- el spray may cause a fire hazard. Failure to .
[Page 75] Caterpillar C7
216 SEBU8083-09 Maintenance Section Fuel System - Prime After the engine has stopped, you must wait for 10 minutes in order to allow the fuel pressure to be purged from the high pressure fuel lines before any service or repair is performed on the eng.
[Page 76] Caterpillar C7
SEBU8083-09 217 Maintenance Section Fuel System - Prime 1. Check that the fuel supply valve ( if equipped) is in the “ON” position. 2. Open the fuel priming pump and operate the fuel priming pump until astrongpressureisfelt.This procedure will re.
[Page 77] Caterpillar C7
218 SEBU8083-09 Maintenance Section Fuel System Primary Filter (Water Separator) Element - Replace i03342138 Fuel System Primary Filter (Water Separator) Elem en t - Replace SMCS Code: 1260-510-FQ; 1263-510-FQ Water in the fuel can cause the engine t.
[Page 78] Caterpillar C7
SEBU8083-09 219 Maintenance Section Fuel System Primary Filter (Water Separator) Element - Replace NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, test- ing, adjusting and repair of the pr.
[Page 79] Caterpillar C7
220 SEBU8083-09 Maintenance Section Fuel System Primary Filter (Water Separator) Element - Replace 3. Dispose of the contents of the filt er. Remove bowl (2) from element (1). The bowl is reusable. Do not discard the bowl. Dispose of the used elemen.
[Page 80] Caterpillar C7
SEBU8083-09 221 Maintenance Section Fuel System Secondary Filter - Replace Primary Fuel Filter a nd Water S eparator which are Provided by an OEM 1. Close the main fuel supply valve. 2. In order to replace the primary fuel filter, use the instructio.
[Page 81] Caterpillar C7
222 SEBU8083-09 Maintenance Section Fuel System Secondary Filter - Replace NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, test- ing, adjusting and repair of the product. Be prepared to co.
[Page 82] Caterpillar C7
SEBU8083-09 223 Maintenance Section Fuel System Secondary Filter - Replace NOTICE In order to meet expected fuel sy stem component life, 4 micron(c) absolute or less secondary fuel fil- tration is required for all Caterpillar Diesel Engines that are.
[Page 83] Caterpillar C7
224 SEBU8083-09 Maintenance Section Fuel System Water Separator - Check/Drain i03009440 Fuel System Water Separator - Check/Drain SMCS Code: 1263-535; 1263-543 NOTICE Care must be taken to ensure that fluids are contained during performance of inspe.
[Page 84] Caterpillar C7
SEBU8083-09 225 Maintenance Section Fuel Tank Water and Sediment - Drain i03071053 Fuel Tank Water and Sediment - Drain SMCS Code: 1273-543-M&S NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maint.
[Page 85] Caterpillar C7
226 SEBU8083-09 Maintenance Section Fuel Tank Water and Sediment - Drain Check the fuel daily. Drain the wa ter and sediment from the fuel tank after operating the engine or drain the water and sediment from the fuel tank after the fuel tank has been.
[Page 86] Caterpillar C7
SEBU8083-09 227 Maintenance Section Hoses and Clamps - Inspect/Replace i02357283 Hoses and Clamps - Inspect/Rep lace SMCS Code: 7554-040; 7554-510 Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fu- el spr.
[Page 87] Caterpillar C7
228 SEBU8083-09 Maintenance Section Hoses and Clamps - Inspect/Replace • Armoring that is embedded in the o uter covering A constant torque hose clamp can be used in place of any standard hose clamp. Ensure that the constan ttorquehoseclampisthesam.
[Page 88] Caterpillar C7
SEBU8083-09 229 Maintenance Section Radiator - Clean 5. Disconnect the old hose. 6. Replace the old hose with a new hose. 7. Install the hose clamps with a torque wrench. Note: Refer to the Specificati ons, SENR3130, “Torque Specifi cations” in.
[Page 89] Caterpillar C7
230 SEBU8083-09 Maintenance Section Severe Service Application - Check Pressurized air is the preferred method for removing loose debris. Direct the air in the opposite direction of the fan's air flow. Hold the nozzle approximately 6 mm (0.25 i.
[Page 90] Caterpillar C7
SEBU8083-09 231 Maintenance Section Severe Service Application - Check Reduce the maintenance interval s for engines that operate in severe service applications. An application is a severe serv ice application if any of the following conditions apply.
[Page 91] Caterpillar C7
232 SEBU8083-09 Maintenance Section Severe Service Application - Check • Frequent operation in dusty cond itions or off-highway operation • Off-highway operation • Frequent high altitude operation above 1525 m (5000 ft) • Extreme ambient temp.
[Page 92] Caterpillar C7
SEBU8083-09 233 Maintenance Section Starting Motor - Inspect i00651416 Starting Moto r - In spect SMCS Code: 1451-040; 1453-040 Caterpillar Inc. recommends a scheduled inspection of the starting motor. If the starting motor fails, the engine may not .
[Page 93] Caterpillar C7
234 SEBU8083-09 Maintenance Section T urbocharger - Inspect A risk of corrosion exists for the compressor side of the turbocharger if ultralow sulfur diesel fuel is not used. A risk of corrosion exists for the compressor side of the turbocharger if u.
[Page 94] Caterpillar C7
SEBU8083-09 235 Maintenance Section Turbocharger - Inspect NOTICE Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, test- ing, adjusting and repair of the product. Be prepared to collect the fluid.
[Page 95] Caterpillar C7
236 SEBU8083-09 Maintenance Section Walk-Around Inspection Thepresenceofoilmaybetheresu lt of extended engine operation at low idle. The presence of oil may also be the result of a restriction of the line for the inlet air (plugged air filters), whi.
[Page 96] Caterpillar C7
SEBU8083-09 237 Maintenance Section Walk-Around Inspection NOTICE For any type of leak (coolant, lu be, or fuel) clean up the fluid. If leaking is observed, find the source and correct the leak. If leaking is suspected, check the fluid levels more.
[Page 97] Caterpillar C7
238 SEBU8083-09 Maintenance Section Walk-Around Inspection • Check the water separator (if equ ipped) for water on a daily basis. Drain any water from the water separator. If necessary, drain the water and the sediment from fuel tanks in order to e.
[Page 98] Caterpillar C7
SEBU8083-09 239 Maintenance Section Water Pump - Inspect i00864339 Wa ter P ump - Inspect SMCS Code: 1361-040; 1361 Overconcentration of coolan t additive (conditioner), mineral deposits from hard water, or cooling system contamination can accelerate.