TM-9-2520-254-34 Direct Support for M113 TX100-1 Transmission 2520-00-066-4240 Download

transmission assembly. Use table 4-1 in conjunction 4-6. Troubleshooting—TX 100-1 Transmission with paragraph 5-62, tests, and paragraph 5-63, Removed from Vehicle adjustments. In table 4-1, the letters opposite the When the malfunction has not been determined malfunction indicate the probable causes of before removal from the vehicle, the transmission trouble. The instructions in the last column are to should be mounted on a test stand and checked. be followed in correcting the malfunction. Refer to paragraphs 5-60 through 5-62. Particular 4-5. Troubleshooting Tests attention should be given to correct adjustment and All tests prescribed after assembly (para 5-58) may proper oil level in every test. be applied to the transmission assembly in which a malfunction is suspected. Table 4-1. Troubleshooting Malfunction 1. Lockup clutch does not engage. 2. Lockup clutch engages at too low speed. 3. Lockup clutch engages at too high speed. 4. Automatic shift from low to in- termediate nccurs at too low speed. 5. Automatic shift from low to in- termediate occurs at too high speed. 6. Transmission does not shift automatically out of low range. 7. Transmission does not shift manually out of low range. Probable Cause ;I. Lockup valve or plug sticking in bore. l). Seal ring on lockup clutch piston failed or omitted. r. Hook-type seal ring ( 11, fig. 5-62) broken or missing. (f. Front governor ( G 1 } pressure low. c. Flow valve sticking in bore. Valve toward larger diameter of bore. ~. Lockup clutch plate failed. :1. Lockup valve spring weak or broken. l). ‘lhrottle valve linkage discorr- nected or improperly adjusted. it. Throttle valve linkage improperly adjusted. 1~. Front governor (G 1 ) pressure low. ,. Lockup valve spring load ex- cessive. Low-intermediate shift valve spring a . /). (.. a . /). (. a. b. . . broken or weak Rear governor (G2 ) pressure low. Throttle valve linkage improperly adjusted. Low-intermediate shift valve spring load excessive. Rear governor (G2) pressure low. Low-intermediate shift plug, shift valve, or blocker plug sticking. SIlift linkage disconnected (manual selector valve at 1- position ). Shift linkage disconnected (manual selector valve at 1- positiorr). Low-intermediate shift valve or blocker plug sticking. r. Manual selector valve sticking at 1 -position. Corrective Action a. Overhaul (rebuild) or replace control valve assembly ( para 5-52 through 5-56). b. Install new seal ring (para 5-7 through 5-11). r. Replace seal ring or overhaul transmission ( para 5-17 through 5-21). d. Refer to item 14 below. c. Overhaul (rebuildl or replace control valve assembly (para 5-52 through 5-56) J Replace clutch plate (fig. 5-119). a. Overhaul (rebuild) or replace control valve assembly ( para 5-52 through 5-56). l). Repair, replace and / or adjust linkage (para 5-63). a. Adjust linkage (para 5-63). b. Refer to item 14 below. r. Check spring load (table 6-2); replace spring (para 5-52 through 5-56). Check spring load (table 6-2) ; replace spring (para 5-52 through 5-56). a. Refer to item 15 below. b. Adjust linkage (para 5-63). r. Check spring load (table 6-2); replace spring ( para 5-52 through 5-56). a. Refer to item 15 below. b. Overhaul (rebuild) or replace control valve assembly (para 5-52 through 5-56). r. Connect and adjust linkage 5-63). a. Connect and adjust linkage 5-63). para para b. Overhaul ( rebuild) or replace control valve assembly ( para 5-52 through 5-56). r. Overhaul (rebuild) or replace control valve assembly ( para 5-52 through 5-56). 4-2