T a b l e 4 - 6 . W h e e l M o u n t i n g K i t T r o u b l e s h o o t i n gMALFUNCTION1.2.3.4.Abnormal tire wear.Wheel wobbles.Kit pulls to oneside.Kit tends towander.PROBABLE CAUSEa.b—“c.—a.b-“c.a.b—“a.b.Improper tire pressure.Axle assembliesmounting hardwareloose,Alignment.Lug nuts loose.Defective or improperlyadjusted wheel bearings.Bent wheel.Improper tire pressure.Wheel brake dragging.Improper tire pressure.Axle assemblies mount-inghardware loose.a. Removal. Remove wheel bearings (5) and (11)as illustrated in f i g u r e 4 - 1 2 . Do not remove bearingcups (13)and (12)unless they are found to be defectiveat ti~e of inspection.Tap cups (13) and(12) fromdrum(14) using drift andhammer./~. Inspection, Service, andRepair.(1) Clean parts with a cleaning solvent, Fede-ral Specification P-D-680, anddry thoroughly.(2) Inspect forcracks, breaks, andotherdamage.(3) Inspect bearings( 5 a n d 1 1 , f i g . 4 - 1 2 ) forsmoothness of rotation and cups (13) and(12) forpitting.(4)Repair by replacing defective parts. Bear-ingsand cups are matched sets.(5)Pack bearings with grease conforming toFederal ~ecification W-G-632, type A, grade 2.Applylight film of grease to running surfaces ofbearing cups, outside and inside diameter of greaseseal (10) and axle.c. Installation. Jnstall wheel bearings (5)and (11)as Illustratedin f i g u r e 4 - 1 2 observing the following:CORRECTIVE ACTIONa.Correct tire pressure. (Refer to p a r a g r a p h4 - 3 3 . )bTighten hardware.—.c.a.b—.c.a.b—.a.b—.Correct wheel alignment. (Refer to p a r a -g r a p h 4 - 3 6 . )Tighten lug nuts.Adjust or replace wheel bearings. (Refer top a r a g r a p h 4 - 3 4 . )Replace wheel. (Refer to p a r a g r a p h 4 - 3 3 . )Correct tire pressure. (Refer to p a r a g r a p h4 - 3 3 . )Adjust brakes. (Refer to p a r a g r a p h 4 - 3 5 . )Correct tire pressure. (Refer to p a r a g r a p h4 - 3 3 . )Tighten hardware.(1) Ensure brake shoe linings ( 1 7 a n d 1 8 ,f i g u r e 4 - 1 2 ) and drums (14) are free of grease priorto installation.(2) Install bearing cups(13) and(12) andgrease seal(10) using sleeves the same diameter ascups and seal.(3) Replace washer (4) and nut (3) andadjustwheel bearings (5) and (11)as specified in p a r a g r a p h4 - 3 4 d . prior to installing cotter pin (2) and greasecap (0.d. Adjustment. See f i g u r e 4 - 1 2 and adjust wheelbea;ings (5) and(!11) as follows:(1) Tighten nut ( 3 , f i g . 4 - 1 2 ) until it is snug.Back off nut until next cutout in nut is aligned withcotter pin (2)hole in axle.(2) Spinwheel to ensure it is free to rotate andbearings (5) and(11) are notbinding.(3) Install new cotter pin (2) andgrease cap(l).e. Install wheel on axle, remove support blocks,low% generatorset and remove jack.4 - 2 5
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business