1979/11/28 Caterpillar

Common Sense Tips For Cab-Overs

Usage:

Basic common sense is always the first rule for safely servicing any equipment. When you service a Caterpillar diesel engine in a cab-over truck, that common sense must include observance of some sensible precautions. Before tilting the cab:

... First, check for adequate clearance above and in front of the truck cab.

... Keep tool chests and workbenches away from the front of the cab.

... Inspect the sleeper and cab interior for loose luggage, tools and liquid containers which could fall forward when the cab is tilted.

... Be sure the "Buddy" or "Jump Seat" on the right side of the cab is securely in place.

While tilting the cab:

... Be sure the governor, transmission and clutch linkage do not interfere with the cab.

... Never work under a partially tilted cab unless it is properly secured.

... When cab is tilted past the over-center position, use cables or chains to keep it from falling. Do not rely on the cab hydraulic lift mechanism to retain or break the fall of the cab in any position beyond the over-center point.

While the cab is tilted:

... If it's necessary to open a door, take care to avoid damage to the door hinges and/or the window glass.

While lowering the cab:

... Watch all governor, steering, clutch and transmission linkage. Bellcranks may turn over center, shift levers can jam against bottom of the cab and some models of clutch links separate when the cab is tilted. These clutch linkage components can miss their mating part when the cab is lowered.

... Be sure the mating ends of the exhaust and air cleaner inlet pipes align properly.

... Be sure the cab lowers properly on mounting and locating pins. If a twisted or misaligned cab misses the locating pins, the cab latch will not secure the cab in the locked position.

... Lock the cab latching mechanism when the cab is all the way down. If you do not lock the cab, it may swing forward when the truck is stopped suddenly.

Follow these recommendations each time you service a Caterpillar engine and you'll considerably reduce the risk of injury to someone and/or damage to the engine and cab.