PROPEL

NOTE: Anytime one of these motion limits is violated, the Limit bell on the front of the operator's right control console will sound.

CAUTION: These motion limits are safety devices built into the machine to protect it against operator error. THESE ARE NOT OPERATING LIMITS AND ARE NOT TO BE USED DURING NORMAL OPERATION. REPEATED ACTIVATION OF ANY LIMIT WILL RESULT IN DAMAGE TO MACHINE COMPONENTS and require downtime for repair. This causes production costs to increase. An accomplished operator will seldom, if ever, get into any of these limits while running the machine.

PROPEL

Moving the machine around the bank work area and from one bench to another or anywhere in the pit requires careful operator concentration and coordination with the ground crew.

182M Operator Controls ~Propel

Park the dipper handle in its carry position before transferring control from DIG to PROPEL mode. Carry the dipper with the dipper handle lower than its horizontal position when propelling, so the dipper weight is supported with the shipper shaft too. This position minimizes shock loads on the hoist drum shaft and bearings when propelling the machine.

For propelling, machine control is in PROPEL mode, Line Excitation activated, and propel brakes released (green light ON). The swing drive is activated in this mode also. It is recommended standard procedure to have the swing brakes released while propelling steering for better travel area observation and machine control. The propel warning Klaxons or buzzer will sound all the time the machine is in the propel mode and LE is energized.

NOTE: When transferring from DIG to PROPEL mode, the hoist and crowd brakes automatically SET to prevent the dipper from falling. It is proper operator procedure, regardless, to set these brakes with their manual control switches before transferring modes.

Moving the RIGHT joystick controls the propel machinery on the RIGHT crawler. Moving the LEFT joystick controls the propel machinery on the LEFT crawler.

Forward movement from "neutral" of either joystick results in the respective crawler belt moving forward; rearward movement of either results in the respective crawler moving in reverse.

NOTE: Forward movement of the crawlers is toward the front idlers. The operator should be aware of the crawlers position with respect to the rotating frame before attempting to move the machine.

The forward/rearward movement of either joystick controls the speed of the propelling motion in proportion to the amount the lever is moved away from its neutral (centered) position.

CAUTION: Make sure the propel brakes are released (green indicating light ON) before moving either master controller off neutral. MOVING A CRAWLER BELT BEFORE ITS BRAKE IS RELEASED WILL RESULT IN PREMATURE BRAKE WEAR and expensive machine downtime to repair.

CAUTION: After placing machine control in the propel mode, carefully push each joystick forward to confirm the direction of crawler travel. WHEN THE OPERATOR CAB DOES NOT ALIGN WITH THE FRONT IDLERS ON THE LOWER FRAME, MACHINE MOVEMENT COULD BE DIFFERENT THAN EXPECTED.