TM5-3810-305-10 BE ALERT FOR SIGNS OF PUMP   CAVITATION.   The hydraulic oil provides lubrication for  pumps.  When  too  heavy  or stiff, it will not flow fast enough to meet pump demand and a vacuum or “cavitation” will be created.  A  “screaming”  noise indicates inadequate pump lubrication and, if allowed to continue for more than a short period, will result in serious damage to pumps. I CAUTION I If the LRT 110 Crane is to be towed a distance of more than 1 mile (1.6 km) and/or at speeds greater than 3 mph (4.8 km/h), the front driveshaft must be disconnected from the front axle. As an alternative to disconnect- ing the driveshaft, if (he engine is operable, the engine may be started and allowed to idle during the  towing  process.  This  will circulate lubricant in the trans- mission, lubricating the clutches during the towing operation. Failure to disconnect the drive- shaft or to run the engine will cause internal damage to the transmission as the vehicle is towed. The tow bar MS500048 is the only tow bar to be used on this vehicle.  If  not  available,  see organizational  maintenance. Failure to follow this procedure could cause damage to equip- ment. Be certain correct socket and wedge as supplied are used. Failure to follow this procedure could cause damage to equip- ment. CAUTION Loops formed by overrun can cause kinks and dog legs in the cable, resulting in damage and premature cable failure. I CAUTION I Never use a steel hammer or pinch bar to move cable over on drum.  These  tools  can  easily damage cable. If traveling more than five miles on improved roads or two miles on rough terrain or unimproved roads, remove anti-two block weight and chain from the switch and secure it to the anchor point of the wedge socket located either on the boom head or hook block, whichever is accessible. Failure to follow this procedure could cause damage to the hook block   switch. 1-40