TM 5-3610-253-14
DIRECT/GENERAL SUPPORT TROUBLESHOOTING - Cont
Table 5-9.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. WHEN USING THE FOOT PEDAL, THE CLAMP DOES NOT OPERATE AT ALL.
Check for 140 ohms between pins 4 and 1 of plug connector SZ 36.
Step 1.
(a) If 140 ohms is not present, replace control block (paragraph
(b) If correct, proceed to step 2.
Check for a short between test point G1 on PC ST and pin 3 of plug
Step 2.
connector ST 35.
(a) If correct, proceed to step 6.
(b) If incorrect, proceed to step 3.
Step 3.
Check for a short between test point G1 on PC ST and pin 5 of plug
connector SZ 15.
(a) If correct, check continuity of gear limit switches and
replace defective gear limit switch (paragraph 5-15.18).
(b) If incorrect, proceed to step 4.
Step 4.
Check for a short between pin 10 of plug connector ST 15 and test
point G1 on ST PC card.
(a) If correct, replace PC card 9 (paragraph 5-20. 11).
(b) If incorrect, proceed to step 5.
Step 5.
Check for a short between test point G1 on ST PC and pin 12 of plug
connector ST 34.
(a) If correct, check continuity of cutting buttons and replace
defective cutting button (paragraph 5-16.16).
(b) If incorrect, replace ST PC motherboard (paragraph 5-20.12).
