Table 4-2. Unit Troubleshooting-continued -706880239

TM 5-4210-233-14&P-1

Table 4-2. Unit Troubleshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ELECTRICAL SYSTEM - HI-IDLE CIRCUITS - Continued

HIGH IDLE SWITCH IN CAB WILL NOT ENGAGE HIGH IDLE - Continued

Step 6. Check for +12V at terminal #9 of CRY032.

Replace pump linkage switch (see para 4-9.4).

Step 7. Check for +12V at terminal #6 of CRY032.

Replace CRY032 (see para 4-9.4).

Step 8. With PTO switch off, check for continuity between terminals 6, 9 and 7, 4 on CRY054.

Replace CRY054 (see para 4-9.4).

Step 9. Attempt to engage high idle using cab switch, then, with wires 1494 and 1495 disconnected,

check for continuity between terminals 4 and 7 of CRY031.

Replace CRY031 (see para 4-9.4).

HIGH IDLE ENGAGES, BUT INDICATOR LIGHT DOES NOT ILLUMINATE

(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 3 of 16.)

Step 1. Check bulb.

Replace bulb (see para 4-95).

Step 2. Check terminal #9 on CRY031 (wire 1427) for +12V.

Replace wiring/circuit breaker #2 on ignition accessory buss (see para 4-99).

Step 3. With high idle engaged, check for +12V on terminal #6 of CRY031 (wire 1510).

Replace CRY031 (see para 4-9.4).

4-110