2003/12/01 Caterpillar

A New Dowel Improves Lubrication to the Rocker Assembly {1123, 1123}

Usage:

3512 1LM

Caterpillar Products:
3500 Family Generator Sets and Power Modules
3500 Family Pumpers
G3500 Family Generator Sets and Power Modules
Engine: Commercial
3500 Family All
G3500 Family All
Engine: Commercial
3500 Family All
G3500 Family All

Description of Change: A new dowel that meters the oil is available for the above engines. This new metering dowel has a larger orifice that will provide an increased supply of engine oil to the rocker shaft and to the rocker arm bearings. The increased supply of engine oil will provide a better film of oil that will decrease the wear of the rocker shaft and of the rocker arm bearings.

Adaptable To: The new 197-7008 Dowel is a direct replacement for the previous 7N-2049 Dowel. The 197-7008 Dowel is adaptable to all 3500 Engines. The new dowel can be used in order to service a single cylinder or the new dowel can be used in order to service all of the cylinders. The new 197-7008 Dowel is effective with the engines that are listed in Table 1, Table 2, Table 3, and Table 4.

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Illustration 1	g01044011
(1) Dowel

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Table 1
3508 Serial Number Effectivity
S/N:1FZ1986-UP
S/N:1JZ640-UP
S/N:1TW352-UP
S/N:23Z7945-UP
S/N:2BM188-UP
S/N:2HW263-UP
S/N:2TJ178-UP
S/N:3DM465-UP
S/N:3DW178-UP
S/N:3HM15-UP
S/N:3LS228-UP
S/N:4GM743-UP
S/N:4WD33-UP
S/N:5PS318-UP
S/N:68Z1253-UP
S/N:69Z892-UP
S/N:6PN874-UP
S/N:70Z1078-UP
S/N:7SM945-UP
S/N:8TL11-UP
S/N:95Y1231-UP
S/N:96Y2068-UP
S/N:97Y742-UP
S/N:9TG353-UP
S/N:9WN16-UP
S/N:BPX99-UP
S/N:CBB197-UP
S/N:CTC256-UP
S/N:CTF264-UP
S/N:CTN199-UP
S/N:LPD9-UP
S/N:S2E107-UP

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Table 2
3512 Serial Number Effectivity
S/N:1GZ1650-UP
S/N:1KZ1340-UP
S/N:1PW435-UP
S/N:24Z153-UP
S/N:2AF376-UP
S/N:2EZ345-UP
S/N:2GW411-UP
S/N:2WK87-UP
S/N:3KD268-UP
S/N:3MS233-UP
S/N:3ZW505-UP
S/N:49Y1042-UP
S/N:4AW852-UP
S/N:4DR7-UP
S/N:4TN811-UP
S/N:50Y1810-UP
S/N:51Y863-UP
S/N:5AW135-UP
S/N:5JD102-UP
S/N:5ZZ270-UP
S/N:65Z1137-UP
S/N:66Z948-UP
S/N:67Z2068-UP
S/N:6JW129-UP
S/N:6WN803-UP
S/N:7HM268-UP
S/N:7NJ997-UP
S/N:8DF187-UP
S/N:8EM517-UP
S/N:8RM755-UP
S/N:9FP228-UP
S/N:AAG6-UP
S/N:BRC156-UP
S/N:BRN192-UP
S/N:CTB187-UP
S/N:CTE348-UP
S/N:CTH246-UP
S/N:CTM334-UP
S/N:FFG18-UP
S/N:PWG114-UP
S/N:S2L110-UP
S/N:S2M102-UP

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Table 3
3516 Serial Number Effectivity
S/N:1HZ2549-UP
S/N:1LZ544-UP
S/N:1NW145-UP
S/N:25Z7100-UP
S/N:27Z853-UP
S/N:29Z1390-UP
S/N:2FW334-UP
S/N:2JW411-UP
S/N:2TS8-UP
S/N:3CW258-UP
S/N:3JS9-UP
S/N:3NS246-UP
S/N:4BW565-UP
S/N:4EK3950-UP
S/N:6HN1720-UP
S/N:71Z404-UP
S/N:72Z567-UP
S/N:73Z968-UP
S/N:7EZ320-UP
S/N:7KM77-UP
S/N:7RN1952-UP
S/N:8CN212-UP
S/N:8JZ306-UP
S/N:8KN571-UP
S/N:8LD134-UP
S/N:8PW344-UP
S/N:9AN373-UP
S/N:9WF118-UP
S/N:BCK284-UP
S/N:CAN111-UP
S/N:CBN322-UP
S/N:CDE313-UP
S/N:CEY165-UP
S/N:CTA153-UP
S/N:CTD183-UP
S/N:CTG272-UP
S/N:CTJ200-UP
S/N:CTL675-UP
S/N:CTW424-UP
S/N:DKR104-UP
S/N:GHP151-UP
S/N:GSE155-UP
S/N:RWA154-UP
S/N:S2S102-UP
S/N:S2X109-UP
S/N:TAK3-UP