V Conversion Instructions

SECTION V

CONVERSION INSTRUCTIONS

MARION 151-M

SHOVEL TO DRAGLINE

CONVERT A MARION 151-M SHOVEL TO DRAGLINE

1. Intermediate hoist shaft for shovel must be changed for use as drag hoist shaft. This requires reversal of the brake and friction bands that are on this shaft. An extra hole is provided in the herringbone gear for reversal of the friction band. The dead end bracket for the reversed check band must-be added on the deck -- locate and drill deck holes at assembly. The friction ram cylinder and levers must also be reversed. Add drag hoist drum lagging on this shaft. Change. coupling bolts. Add guard between hoist motor and new dragline hoist drum. Holes for the guard must be located and drilled at assembly.

Z. Add friction and check brake housings on front drum shaft and replace shovel hoist lagging with drag drum lagging. Add ram cylinder and levers on front hoist gear for actuating frictioQ band. Add friction band -- also check band and check band support for front drum shaft. Check band anchor. and check band support must be located at assembly and then drill deck for-these parts.

3. Add boom hoist in upper frame. to drive off left end of hoist motor. (If boom hoist is not already on the shovel). Use crowd magnet valve for boom hoist if needed for dragline. Bolt holes for boom hoist bearing must be located and drilled in deck on left end of hoist motor.

Boom hoist drum and worrn shaft unit must be located in the upper frarne so gears will mesh properly with idler gear in boom hoist bearing on the deck. Then drill upper frarne for drum and worm shaft unit bolts Add piping for boom hoist ram cylinder. and change electrical wiring for control of boom hoist control solenoid valve.

4. f Change gantry head; add sheaves and use new gantry cross over bridle for eight part boom hoist cable. (Shovel may be furnished with boorn hoist and/or eight part boorn hoist cables -- in this case no change is required).

s. Add piping for new ram cylinders and levers for drag and hoist brakes and piping for drag friction control. Earliest 151-Mls were furnished with foot operated mechanical brakes for hoist and drag OIl" draglines. Later lSI-MIs were furnished with foot treadle operated air brakes for hoist and drag on draglines.

). Add guards under drag cable and for hoist gears on front drum shaft.

Bolt holes must be located and drilled in the deck as required for the supports for these two units.

-, _J.{ fairlead on bosses provided on center front of upper frame.

8. Add ladder at outside of right front corner of cab.

9.

Add dragline booxn -- note that caxnber in the boom must be "up" and that all eight parts of the booxn hoist cable go to the boom point. Add boo hoist cable.

10.

11.

ll.

shovel foot operated swing control parts and install foot ope ated hoist and drag air brake pedals for dragline in their place. Ma ual operated brakes on early design draglines. See item "E" for oth r changes to add drag and hoist brakes. i I uS1·shovel crowd controller for dragline swing control -- change wir" g per print -- also add wiring. air piping and control magnet val for front druxn shaft.

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Add dragline hoist sheave block. hoist cable. drag cable and drag bucket. per erection prints for dragline•.

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