Fifth Bow Latch Motor - Adjustment
CATEGORYBody
SECTION PAGE
8 130
ISSUE CODE
10/95-0628 814
Subject: Adjustment of Fifth Bow Latch Motor
Application: 1995 900 Convertible
Correct adjustment of the fifth bow latch motor is crucial to the proper function of the top stack mechanism. If the fifth bow does not release when instructed to do so by the top stack ECM, the top may not operate at all, or, damage to the Tonneau cover flaps may occur. On vehicles in your inventory, follow the steps detailed below to properly perform the adjustment of the fifth bow latch motor.
Before performing any adjustment make certain that all steps in PSI 03/95-0554 (Sec. 8, p.104) "Improvement to Operation of Top Stack Mechanism" have been performed. Also note the improvements covered in this bulletin may have been performed differently on the production line. Should you have any questions regarding the procedures covered or to receive an additional copy of the bulletin, please contact the Saab Technical Assistance Center at l-8OO-766-2857.
Cars Affected:
1995 Convertibles
Action:
1. Cycle the top until the 5th bow and the Tonneau cover stand up fully and the cover flaps (5th bow latch motor) are in the closed position.
2. Remove the 5th bow latch system cover from the bottom of the Tonneau cover.
3. Measure with a 1.0mm feeler gauge that there is play between the last gear tooth and the blank part of the upper and lower gear rack. See Figure 2.
If there is no play, continue with the adjustment as detailed below.
NOTE:
Standard feeler gauge may be too wide and may need to be cut to make this measurement.
Adjustment:
1. Release the latch rods.
2. Connect ISAT and maneuver the 5th bow latch motor one full cycle via SAT command:
TSAS
ACTIVATE
5TH BOW LATCH MOTOR
Make sure that the latch motor is in fully latched position.
3. Remove any extra lock nuts (if fitted) from the devises on the latch rods. This will allow for more adjustment.
4. Fit the latch rods to the latches.
5. Adjust the rods so that they are at least 3mm short of the mounting holes (won't reach the mounting holes in the racks) and that they are as equally short on the left-hand side as on the right-hand side as possible. This might require some extra turns of the threads on the latch rods. If so, use a MS threading die.
6. Connect ISAT and drive the latch motor to the fully open position via ISAT command:
TSAS
ACTIVATE
5TH BOW LATCH MOTOR
7.Check as you stand behind the car, looking straight down through the holes in the Tonneau cover that you see a maximum 1.5mm of the tip of the latch tongue. See Figure 3.
If more than 1.5mm of the tip of the latch tongues are visible, go back to step 5 and lengthen the rods slightly.
8. Fit the 5th bow latch system cover.
9. Cycle the top and check the function. If necessary, adjust the 5th bow strikers (inward).
Warranty Information:
Submit a claim using the following information:
Failure code: 81404-79-0-06-05
Labor operation number: 81404 - 0.4 hr.