2001 WESTERN STAR CONSTELLATION TSBs (13)

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-47-10
Component:
072200 fuel system, gasoline:delivery:hoses, lines/piping, and fittings
Summary:
Western star: vehicles equipped with an mbe4000 engine and an alliance fuel/water separator may have insufficient clearance between the engine mounted fuel line and the frame rail mounted fuel/water separator mounting bracket. no model yea
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-60-24
Component:
161000 structure:frame and members
Summary:
Western star: cab front crossmember retrofit; 109bbc raised cab. some raised cab trucks have experienced failures of the cab front crossmember an alternate crossmember has been designed. no model years listed. *pe
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-47-11
Component:
072200 fuel system, gasoline:delivery:hoses, lines/piping, and fittings
Summary:
Western star trucks: fuel line fitting replacement information. *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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