VALVE GP-MAIN CONTROL 1338611 - Caterpillar

AFFECTED PRODUCT
Model Identification Number
320D A6F00359-00364, 367-368, 373-375, 377-383, 385, 387-388, 390, 392-393, 395-405, 408-411, 413-416, 418-427, 429, 433, 437, 439, 442, 444-463, 469-470, 475-483, 487-496, 498-500, 508-516, 521, 528
320D L A8F00521-00535, 537-544, 546-552, 554-558, 560, 562, 564, 566, 568, 570-571, 573, 575, 577, 579, 581-583, 585-592, 595, 597-605, 609-610, 612, 614-615, 619-620, 622, 624-625, 627-630, 633-699, 701, 707-708, 710, 712-713, 715-716, 719-720, 722, 725-727, 730, 734, 738-739, 741, 743-747, 752
330D L B6H00648-00652
JLP00567-00655, 657-676, 681-685, 687, 689-691, 693-697, 699-702, 707, 719
PARTS NEEDED
No parts needed for this program
ACTION REQUIRED
Refer to Disassembly and Assembly Manual, RENR8614 and RENR8648, for the swing gear bearing removal and installation, for 320D and 330D respectively.
320D Model
The (40) 8T0360 and (37) 8T0362 Bolts that hold Swing Gear Bearing in the carbody and upper frame need to be inspected to verify that bolts are tightened with the correct torque 568 +/- 59 Nm (419 +/- 44 lb ft). For bolts tightened to a torque less than 509 Nm (375 lb ft) the correct torque of 568 +/- 59 Nm (419 +/- 44 lb ft) must be applied.
330D Model
The (46) 6V8132 and (42) 8T0670 Bolts that hold swing gear bearing in the carbody and upper frame need to be inspected to verify that bolts are tightened with the correct torque of 900 +/- 100 Nm (665 +/- 75 lb ft). For bolts tightened to a torque less than 800 Nm (590 lbft) the correct torque 900 +/- 100 Nm (665 +/- 75 lb ft) must be applied.
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OWNER NOTIFICATION
U.S. and Canadian owners will receive the attached Owner Notification.
SERVICE CLAIM ALLOWANCES
Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
100% 100% 0% 0% 0% 0%
This is a 3.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.
COPY OF OWNER NOTIFICATION FOR U.S. AND CANADIAN OWNERS
XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999
PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND TIGHTENING IF NECESSARY THE SWING GEAR BEARING BOLTS ON CERTAIN 320D AND 330D EXCAVATORS
MODELS INVOLVED - 320D AND 330D EXCAVATORS
Dear Caterpillar Product Owner:
The bolts that holding the swing gear bearing may loosen on the products listed below. The torque needs to be checked on these bolts and they need to be tightened if necessary to prevent extensive damage to the swing gear bearing group.
Contact your local Caterpillar dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.
Please refer the dealer to their Service Letter dated 30Jun2008 when scheduling this service.
We regret the inconvenience this may cause you, but urge you to have this service performed as soon as possible to prevent unscheduled downtime.
Caterpillar Inc.
Identification #(s)
Attached to 30Jun2008 Service Letter