1998 WESTERN STAR CONSTELLATION TSBs (11)
- Bulletin:
- SB-32-10
- Component:
- 351000 equipment:recreational vehicle
- Summary:
- Western star: some barksdale height control valves have been returned for warranty because four bolts in the valve housing were overtightened, often, enough to crack valve housing. model years unknown. *pe
- Bulletin:
- SB-31-7
- Component:
- 161000 structure:frame and members
- Summary:
- Western star truck: 5 piece back of cab service crossmember. 5 piece bolted service crossmembers are an improved, more durable service replacement for the tubular back of cab crossmembers. follow steps to replace a tubular back of cab cr
- Bulletin:
- SB-46-8
- Component:
- 013000 steering:gear box (other than rack and pinion)
- Summary:
- Western star: trw tas85 steering gear internal leakage test. some trw tas85 steering gears have been equipped with an internal relief valve. these steering gears are typically installed with power steering pumps that have a pressure reli
- Bulletin:
- SB-49-7
- Component:
- 063000 engine and engine cooling:exhaust system
- Summary:
- Western star: epa07 exhaust bellows replacement. if a failed exhaust bellows on an epa07 engine installation, replace it with a new style bellows, and two new matching clamps. no model years listed. *pe updated on 6/14/2011. *kb
- Bulletin:
- SB-49-8
- Component:
- 061000 engine and engine cooling:engine
- Summary:
- Western star trucks: there are new cgi bellows due to current ones that are prone to failure. *rm
- Bulletin:
- SB-32-13
- Component:
- 021230 suspension:front:springs:air suspension system
- Summary:
- Western star trucks: the rear suspension air-spring assembly has been redesigned. *rm
- Bulletin:
- SB-35-06
- Component:
- 022520 suspension:rear:axle:non-powered axle assembly
- Summary:
- Western star trucks: instructions to remove, inspect, and reseal the lower pinion cover on the rear axles. *rm
- Bulletin:
- SB-35-07
- Component:
- 021600 suspension:front:wheel bearing
- Summary:
- Western star trucks: information on wheel bearing lubrication in the rear axle. *rm
- Bulletin:
- SB-46-9
- Component:
- 015100 steering:hydraulic power assist:pump
- Summary:
- Western star trucks: the procedure to replace the power steering pump with a different version pump. *rm
- Bulletin:
- 35-7
- Component:
- 021600 suspension:front:wheel bearing
- Summary:
- Western star: lubricate wheel bearings, rear drive axles. *js
- Bulletin:
- SB-49-12
- Component:
- 061200 engine and engine cooling:engine:diesel
- Summary:
- Western star: around the diesel exhaust fluid (def) an excessive amount of crystal or powder built up indicates a leak caused by evaporation of def exposed to air and/or dampness. *pe
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