Truck Parts and Service | Heavy Duty Trucking, Aftermarket, Service Info
Issue link: https://read.dmtmag.com/i/85616
Tech Updates PROPER TOOL STORAGE CLEANING It is important to clean and wax tool storage units on a regular basis to protect the fi nish, according to Snap-on. Choose cleaning products that are specifi cally designed for tool storage units. When cleaning the tool storage unit, the fi rst step is to choose a cleaner/degreaser that will remove grease, dirt, oil and fi ngerprints without damaging the surface of the unit. Make sure the cleaner is water-based and body shop safe. Aſt er the tool storage unit has been thorough- ly cleaned, the next step is to wax it. Th e proper wax will help the storage unit resist water spots, fi ngerprints and dust. Use a liquid polish to clean, polish and protect the stainless steel and anodized aluminum on the unit. Another important factor in the cleaning process, according to Snap-on, is choosing a microfi ber cloth that doesn't collect lint and can be used wet or dry. A machine washable cloth is preferred because it tends to be more durable. SAFETY RECALLS On certain Detroit Diesel DD13 EPA2010 engines manufactured from Jan. 1, 2010, through Dec. 15, 2011, sold and installed for use on certain Pierce Manufacturing emergency vehicles and on certain model year 2011 and 2012 Freightliner Business Class M2 and Western Star 4900 emergency vehicles manufactured from July 2, 2010, through Dec. 13, 2011, the engine shutdown software normally provided to protect the engine and vehicle may not have been disabled on engines intended for emergency vehicle applications. If the vehicle operator receives and ignores multiple warnings indicating the need for opera- tor intervention, the engine may shut down unexpectedly. Unexpected emergency vehicle engine shutdown under certain conditions could hamper rescue operations and place the public at risk. The grid heater ground wire on certain model year 2011 through 2013 Freightliner S2 106 CH and S2C 106CAB chassis manufactured from Nov. 15, 2010, through Oct. 6, 2011, may contact the relay power terminal and rub and chafe potentially resulting in a short circuit. An electrical fault or short circuit may result in a fi re. During the assembly process, the steering attachment bolts on Meritor MFS08 series non-drive, front steer axle installed on certain model year 2012 International DuraStar and IC Bus HC heavy trucks and buses manufactured from Feb. 10, 2011, through Feb. 18, 2011, may have been insuffi ciently torqued. Insuffi cient torque of the steering arm bolts may result in bolt fatigue and fracture and/or arm separation, thereby potentially resulting in loss of steering control, increasing the risk of a crash. Under certain road and driving conditions, vehicle body roll and road inclination characteristics may adversely affect the slip angle calcu- lation of the electronic stability control system on certain Navistar 2012 International ProStar commercial trucks manufactured from March 22, 2011, through Dec. 9, 2011, equipped with feature code 04AZX Meritor Wabco ESC units, this might cause the ESC to perceive an over steering situation and therefore apply the outer wheel brake on the front axle until the vehicle is perceived to be stable. If the driver is slow to react during this ESC intervention, the vehicle may deviate from the intended line of travel, increasing the risk of a crash. The pump to rail high-pressure fuel line support system on certain Detroit Diesel EPA07 and EPA10 DD13 engines manufactured from April 22, 2009, through Feb. 1, 2012 installed as original equipment on various heavy-duty trucks and emergency vehicles is sensitive to as- sembly torque and may be damaged during service work. As a result of other repairs, the line supports may loosen, potentially leading to fuel line cracking and a fuel leak. A fuel leak could create a road hazard, increasing the risk of a crash. Also a fuel leak in the presence of an igni- tion source can result in a fi re. 10 TRUCK PARTS & SERVICE | April 2012