2010 Altec Aerial Device

Altec has learned that a 12-volt Airtronics relay installed in the PDM could have been manufactured to an insufficient threshold on certain units built from December 2004 to October 2022. This can cause the relay to overheat and fail, causing the accessory lights to stop working.

Altec has learned that certain digger derricks and aerial devices of various models built from January 2010 to January 2023 may contain access steps with a handrail and side plate that come together in a small space causing a potential pinch point. Altec has created a kit to eliminate the possible pinch point.

Altec has learned that the hydraulic ball valve on the hydraulic reservoir return line of certain L42/45 M/P units built from February 2002 to November 2019 might not get returned to the open position after being turned to the closed position for maintenance. If the upper boom drive system is articulated while the ball valve is in the closed position, both upper boom drive cylinders could retract simultaneously causing the lower boom to buckle. The customer should order and install the Hydraulic Shutoff Valve Placard Kit. The kit must be installed by the next preventative maintenance interval, or within 90 days of receipt of this notice, whichever comes first.

Product advisory posted on our web site to inform owners, user, & operators that the new ANSI A92.2-2021 standard has taken effect and they must review. The standard has changed some of the responsibilities of the parties who use or operate vehicle mounted aerial devices.

Altec has learned that the electrohydraulic outrigger/tools control valve on AA755L and A-series aerial devices and DLB, DMB, and D2/3/4000B series digger derricks could have the potential to produce a very small amount of flow into the lower tools circuit when the outriggers and tools mode is engaged. This can cause slow unintended movement of a tool such as a pole puller cylinder that is connected to the tool circuit. A blanking plug must be installed to prevent this issue. Inspect the outrigger/tools control valve using the Inspection Procedure. The inspection and repair are covered under the Altec Warranty Policy and can be performed by Altec, the customer, or the customer's warranty provider. Altec will perform the work for free at an Altec facility.

Structural cracking has been observed where the primary leveling cylinder mounting pin is welded to the lower boom side plate on LS 40/45/55 aerial devices. Failure of this connection could disable the hydraulic platform leveling system. Altec has developed a kit to reduce the relief pressure of the hydraulic leveling circuit. This will prevent damage to the leveling cylinder mounting pin weld joint by reducing the weld stress. Altec has also developed a kit to repair the lower boom if the side plate has cracked. Altec requires the inspection and repair be completed on the affected units by the next annual preventive maintenance interval or within one year of receipt of the SIL.