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3508B — Refer to this

For the 3508B.

Procedure

  1. Remove the cover. Remove the primary air cleaner element.
  2. The secondary air cleaner element should be removed and discarded for every three cleanings of the primary air cleaner element. Note: Refer to “Cleaning the Primary Air Cleaner Elements”.
  3. Cover the turbocharger air inlet with tape in order to keep dirt out.
  4. Clean the inside of the air cleaner cover and body with a clean, dry cloth.
  5. Remove the tape for the turbocharger air inlet. Install the secondary air cleaner element. Install a primary air cleaner element that is new or cleaned.
  6. Install the air cleaner cover.
  7. Reset the air cleaner service indicator. Cleaning the Primary Air Cleaner Elements NOTICE Caterpillar recommends certified air filter cleaning ser- vices that are available at Caterpillar dealers. The Caterpillar cleaning process uses proven procedures to assure consistent quality and sufficient filter life. Observe the following guidelines if you attempt to clean the filter element: Do not tap or strike the filter element in order to re- move dust. Do not wash the filter element. Use low pressure comp
  8. Remove the air cleaner cover. Remove the air cleaner element. Note: Refer to “Cleaning the Air Cleaner Elements”.
  9. Cover the air inlet with tape in order to keep dirt out.
  10. Clean the inside of the air cleaner cover and body with a clean, dry cloth.
  11. Remove the tape for the air inlet. Install an air cleaner element that is new or cleaned.
  12. Install the air cleaner cover.
  13. Reset the air cleaner service indicator. SEBU7465-05 83 Maintenance Section Engine Air Cleaner Element (Single Element) - Clean/Replace Cleaning the Air Cleaner Elements NOTICE Caterpillar recommends certified air filter cleaning ser- vices that are available at Caterpillar dealers. The Caterpillar cleaning process uses proven procedures to assure consistent quality and sufficient filter life. Observe the following guidelines if you attempt to clean the filter element: Do not tap or strike the filter
  14. Loosen clamp (1). Slide the clamp down on tube (2).
  15. Loosen clamps (3). Remove both breathers as a unit. g00597465 Illustration 67
  16. Remove O-ring seals (4) from the valve covers. Inspect the O-ring seals for good condition. Obtain new O-ring seals, if necessary. g00597466 Illustration 68
  17. Remove two clamps (6). Remove both breathers (5) from hose tee (7). Inspect the hose tee for cracks. If the tee is cracked, discard the old tee and obtain a new tee for installation.
  18. Turn the breathers upside-down in order to inspect the condition of the breather elements. Clean the breather elements with clean, nonflammable solvent. If the breather elements remain contaminated after the cleaning, discard the breathers and obtain new breathers. Do not attempt to disassemble the breathers. Allow the breather elements to dry before installation. Note: Coat the rubber parts with clean engine oil or petroleum jelly in order to make installation easier.
  19. Place clamps (6) over the parts of hose tee (7) that will receive breathers (5). Install the breathers into the tee. Tighten the clamps to the torque that is listed in the Service Manual, “Specifications”.
  20. Coat O-ring seals (4) with clean engine oil. Place the O-ring seals on the valve covers.
  21. Place clamps (3) around the parts of the breathers that will be attached to the valve covers. Install both breathers as a unit. Tighten the clamps.
  22. Place clamp (1) on the part of the hose tee that will receive tube (2). Install the tube into the hose tee. Tighten the clamp to the torque that is listed in the Service Manual, “Specifications”. i01786814 Engine Mounts - Check SMCS Code: 1152-535 Misalignment of the engine and the driven equipment will cause extensive damage. Excessive vibration can lead to misalignment. Excessive vibration of the engine and the driven equipment can be caused by the following conditions: • Improper mounting • Lo
  23. Remove filler cap (1) in order to ensure that the crankcase pressure is equal to the atmospheric pressure. Excess pressure or a slight vacuum will affect engine oil level that is measured.
  24. Ensure that engine oil level gauge (2) is seated. g00735162 Illustration 70 (3) “ENGINE STOPPED WITH OIL COLD” side (4) “ENGINE AT LOW IDLE WITH WARM OIL” side (5) “ADD” mark (6) “FULL” mark a. If the engine is stopped, remove the engine oil level gauge. Observe the engine oil level on “ENGINE STOPPED WITH OIL COLD” side (3). b. If the engine is operating, reduce the engine speed to low idle. Remove the engine oil level gauge and observe the engine oil level on “ENGINE AT LOW IDLE WITH WARM OIL”

Source: manual:3508B+Industrial+Engines-Maintenance+Intervals.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.