TM 5-3805-261-34TRANSMISSION TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONb.TRANSMISSION DOES NOT SHIFT.Check the oil pump.If the oil pump is damaged or defective--replace. Refer to paragraph 5-10.c.TRANSMISSION ENGAGES SUDDENLY (ROUGH SHIFTING).Step 1.Check the primary relief valve.If the primary relief valve is not operating properly--replace. Refer to paragraph 5-7.Step 2.Check the control linkage.If the linkage is loose or needs adjustment--adjust or replace. Refer to paragraph 5-5.Step 3.Check the load piston.If you suspect a problem with the load piston--contact General Support.Step 4.Check the valve springs.If the valve springs are weak or damaged--replace. Refer to paragraph 14-10.d.SLOW SHIFTING.Step 1.Check the control linkage.If the linkage is loose or needs adjustment--adjust or replace. Refer to paragraph 5-5.Step 2.Check the inlet side of oil pump for air leakage.If the oil pump is damaged or defective--replace. Refer to paragraph 5-10.5-4
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