Adjustment of the linkage to compensate for wear and lubrication is normally all the maintenance required for the PTO unit. The gears and bearings are lubricated from the transmission sump.

If the PTO is to be removed for repairs. disconnect the drive shaft and shift linkage and drain the transmission. Once the transmission is completely drained, remove the bolts that secure the unit to the transmission. DO NOT misplace or lose any shims or spacers that are between the two housings. Once the unit is removed from the vehicle, the inspection and repair procedures are the same as for a transmission. When reinstalling or replacing the PTO, carefully follow the manufacturer's procedures on the installation shims or spacers to prevent damage or unit failure.

Figure 5-35. - Single-speed, single-gear power takeoff installation.

REVIEW 5 QUESTIONS

Q1. What is the simplest type of power takeoff (PTO)?