NO. 16 MOTOR GRADER Every 2000 Service Hours Or 1 Year Caterpillar

(50)Front Axle Spindle And King Pin Bearings

1. Remove upper and lower plugs.

2. Install a fitting in the upper plug opening. Apply lubricant through fitting until a steady flow appears at the lower plug opening.

3. Remove the fitting and install the upper and lower plugs.

4. Lubricate the bearings for the other wheel in the same manner.

(51)Power Control Shaft Worm And Gear Housing

1. Change oil. Remove socket head drain plug.

2. Clean and install plug.

3. Remove fill plug.

4. Fill to FULL mark on level gauge. (See Refill Capacities.)

(52)Transmission

1. Remove 3 plugs located in bottom of transfer gear housing.

2. Change filter element (see item 41).

3. Remove bolts from screen cover assembly. It is located at lower right side of transfer gear housing. Note location of longer bolts.

4. Disassemble screen assembly.

5. Wash screen in clean solvent.

6. Assemble screen assembly and install.

7. Clean and install drain plugs.

8. Fill transmission. (See Refill Capacities.)

9. Start and run engine. Check oil level and add oil if required.

(53)Hydraulic System

1. Lower all equipment, stop engine.

2. Open bleeder plug (if equipped) to relieve pressure.

3. Remove filler cap and drain plug. Allow oil to drain.

4. Pry snap ring loose.

6. Remove snap ring and screen.

7. Wash screen in clean solvent. Install in tank. Clean and install plug.

8. Change filter element. (See item 40.)

9. Fill tank until sight gauge is full. Install filter cap finger tight. Open bleed plug. (See Refill Capacities.)

10. Start engine and run at low idle. Close bleed plug (if equipped) when oil flows without bubbles.

11. Check oil level and add oil as required. Install fill cap tightly.

12. Check oil level after a few hours operation. Add oil as required.

(54)Power Control Housing

1. Remove drain plug from filter housing cover at front of operator's compartment.

2. Remove filter housing cover bolts.

3. Remove cover.

4. Remove filter element retaining bolt and remove element assembly.

5. Remove element and magnet assembly from screen.

6. Clean magnets and screen in clean solvent. Use a clean cloth, pressure air or stiff fiber brush to remove metal particles.

NOTE: Do not drop or rap magnets hard against hard objects.

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When using pressure air, wear safety glasses and protective clothing.

7. Assemble in order shown.

8. Insert assembly in housing.

9. Hold in place and tighten bolt to 25 ± 5 lb. ft. (3,5 ± 0,69 mkg).

10. Clean cover. Inspect seal and use new if damaged.

11. Coat seal with clean oil.

12. Install housing cover.

13. Clean and install drain plug.

14. Remove fill plug.

15. Fill housing. (See Refill Capacities.) Install fill plug.

16. Start engine and operate blade controls.

17. Oil should be visible in sight gauge.

18. Add oil as required.

(55)Final Drive And Trunnion Housings

1. Remove 3 drain plugs from bottom of final drive case.

2. Remove drain plug from trunnion housing on each side of machine.

3. Clean drain plugs. Use stiff brush to clean magnetic plug.

4. Install all drain plugs.

5. Fill to FULL mark on level gauge. (See Refill Capacities.)

6. Add oil at each trunnion fill plug opening to bring oil level to bottom of opening.

(56)Blade Lift Drive Housings

1. Remove fill plugs.

2. Remove drain plugs (one each housing) and drain.

3. Clean and install drain plugs.

4. Fill to bottom of fill plug openings. Install plugs.

(57)Circle Control Housing

1. Remove drain plug and drain.

2. Clean and install drain plug.

3. Remove fill plug.

4. Fill to bottom of fill plug opening. Install plug.

(58)Circle Center Shift Control Housing

1. Remove drain plug and drain.

2. Clean and install drain plug.

3. Remove fill plug.

4. Fill to bottom of fill plug opening. Install plug.

(59)Tandem Drive Housings

1. Remove drain plugs and drain housings.

2. Clean and install plugs.

3. Remove combination level gauge and fill caps.

4. Fill to FULL on gauge. (See Refill Capacities.)

(60)Circle Drawbar Ball Socket

NOTE: For Automatic Blade Control equipped machines, see your AVSpare dealer for checking and adjustment procedures.

1. Fit between ball and cap should be .003 to .008 inch (0,08 to 0,20 mm) tight, for machines serial numbers 49G811-Up (equipped with teflon inserts). Fit between bolt and cap should be .015 to .045 inch (0,40 to 1,20 mm) for machines serial number 89G1-89G810 (non-teflon insert). Raise blade and push drawbar as far forward as possible.

2. Measure clearance between ball and cap.

To Adjust:

1. Remove cap bolts and move cap back.

2. Cut and remove shim(s).

3. Install bolts. Check clearance. Repeat steps 1 and 2 if necessary.

(61)Diesel Engine Valve Lash

Check and adjust with engine stopped.

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NOTICE
Do not use starter to rotate flywheel.

1. Remove camshaft cover.

2. Remove timing bolt and plug.

3. Turn flywheel to close No. 1 exhaust and inlet valves and ...

4. ... allow timing bolt to be installed in flywheel.

5. Check lash for No. 1, No. 3 and No. 5 exhaust valves. Adjust if necessary (see page 30).

6. Check lash for No. 1, No. 2 and No. 4 inlet valves. Adjust if necessary.

7. Remove timing bolt.

8. Rotate flywheel 360° to close No. 6 exhaust and inlet valves and ...

9. ... allow timing bolt to be installed in flywheel.

10. Check lash for No. 2, No. 4 and No. 6 exhaust valves. Adjust if necessary.

11. Check lash for No. 3, No. 5 and No. 6 inlet valves. Adjust if necessary.

12. Remove timing bolt from flywheel.

13. Install timing bolt in storage hole.

14. Install plug in timing hole.

15. Install camshaft cover

Adjusting Valve Lash:

1. Insert cross point (Phillips) screwdriver in hole inside cam follower.

2. Turn screwdriver clockwise to increase lash, or counterclockwise to decrease lash. See page 29 for correct lash.