75 Series Winch Instructions Hydraulic Winch & P.T.O. System Smooth Power Reversible Mounting No Battery Drain 12 or 24 volt 2121 Blount Road, Pompano Beach, FL 33069 (800) 886-8647 www.milemarker.
Parts Listing Quantity (1) (2) (4) (6) (3) (4) (6) (1) (2) (4) (1) (1) (1) (1) (1) (1) (1) (1) (1) (1) A. 93-50012 Hand Control Assembly B. 90-501� C. 90-50099 � D. 86-50020 Washer 3/� E. Wire Tie � F. 90-50121 5/16-18x1 ½ socket Head (valve) G. 86-50030 3/8 lockwashers H. 93-50090 Female Connector I. 90-50114 P� J. 983-0067 Plate hold down screw K. 983-0060 Lever Configuration plate L. 93-80036 Circuit Breaker 24v 15amp M. 90-50067 90º for valve N. 90-50060 Male to female for valve 90º O.
ATTACHING VALVE ASSEMBLY TO WINCH MOTOR. (SEE FIGURE 1) Rotate winch onto its front so that smooth machined area on the winch motor is facing up. Remove rubber plugs from holes in the side of the winch motor. Remove the 2 Motor square-cut 0-rings from rubber plugs and re-seat at the lips of the holes from which they were removed in the motor. Remove rubber bands from valve assembly being sure not to drop metal washers (B) and flow disk (C).
MOUNTING WINCH Winch body on 9000 lb. and 10500 lb. winch has mounting holes only on the bottom. Winch body on 12000 lb. winch has four mounting holes on front, back, and bottom of the winch. This may allow the winch to be mounted easier on some winch mounts or for other applications. The motor on Mile Marker 2-speed winches may also be rotated in 90º increments if needed. This may allow easier installation on some winch mounts.
NOT SURE? Which one is the high pressure hose? The hose with heavy duty crimped on fittings. The low pressure return lines from the steering box or hydroboost both end up at the pump reservoir will have hose clamps or something similar. Does the factory hose have a sensor in it? What this does is increase the rpm of the engine slightly when there is high power steering pump pressure during idle. We have found this is not needed.
CONNECTING THE HOSES There will be two JIC -6 hoses provided in the kit. One is “S”/60” and the other is “T”/78”. Connect the 78” hose from the power steering pump or hydroboost to the “P” port on the black solenoid block. Connect the 60” hose from the “T” port of the black solenoid block to the steering box. These can go thru the grill of the truck or under the radiator area. Tighten the flare fittings hand tight then go ¼ turn more.
FIGURE 4 WHEN DONE Check Fluid Level. Replace lost fluid in system until full. To purge air, start engine, run for two seconds and shut off engine. Check fluid level again. Add fluid until full. Do this until system stays full. Run truck for three minutes or until fluid looses aeration. After system has been filled, turn wheels from lock to lock position (completely right and left) five times. This will aid in bleeding out any air that may still be in the system.
MILE MARKER TWO-SPEED WINCH OPERATION A. GENERAL The vehicle’s steering pump is used to power the winch. The engine must be running while operating the winch, as the engine turns the power steering pump which pumps fluid to rotate the winch. The winch will have full pulling capabilities at an engine idle. The winch is operated by an electric activated switching valve. B. PREPARATION FOR USE 1. For use in pulling objects other than self recovery, park vehicle directly facing object to be winched.
E. OPERATION OF HIGH GEAR 1. Turn top lever to “FREE.” Turn side lever to “HIGH” (lock high gear). MILE MARKER HYDRAULIC 2-SPEED WINCH LEVER POSITIONS (figure 5) View 1 View 2 View 3 View 4 WARNING •DO NOT shift levers with load on winch cable! •DO NOT move shift levers when powering winch in or out! LEVER POSITIONS AND WINCH MODES LEVER #1 LEVER #2 MODE VIEW# Free.......................................................Free...........................................Free Spool............................
GENERAL OPERATION •The vehicle’s hydraulic pump is used to power the winch. The engine must be running for winch operation. •The winch has maximum pulling capabilities at engine idle. •The winch is operated by an electrically activated hydraulic switching valve. •Wear leather gloves when handling winch cable. DO NOT handle cable with bare hands as broken wires can cause injuries. Always use a hook strap where possible.
WINCHING TIPS AND USE OF A SNATCH BLOCK •Use OEM tow hooks, recovery eyes or a clevis mount for attachment of a tow strap or winch cable. Warning: Never use a ball and /or ball mount as an anchor point for tow strap or winch cable. Severe personal injury or death could occur. •Always heed all winch manufacturer’s recommendations, cautions, and warnings. •Attach return cable to tow hook or recovery eye when using a snatch block.
SAFETY TIPS •NEVER DISENGAGE LOW GEAR CLUTCH LEVER WHEN THERE IS A LOAD ON THE WINCH. To manually lock the winch to hold a load, engage BOTH HIGH and LOW GEARS. First, engage low gear. After low gear is engaged, engage high gear. Power the winch IN momentarily. You will hear the high gear engage, and the winch will “lock up.” In this position, it is mechanically locked up and will not freespool, power IN or OUT. To disengage locked position, disengage high gear lever to “FREE.
USE OF A PULLEY BLOCK OR SNATCH BLOCK Figure 9: Vehicle self-recovery using the pulley block attached to the anchor point for direct pull. In this instance the vehicle becomes the “load” and the actual pulling power on the vehicle will be double at half winch rope speed. Never connect wire rope or hook back to winch mount! Truck Eye Hook or “D” Ring Only. Figure 9 Figure 10: Direct pull on load using the winch vehicles as the anchor with pulley block attached to the load.
Figure 11: Indirect pull necessitated by obstructions or soft ground. Pulley block attached to load using a suitable anchor point. Note the angled direction taken by the load and subsequent angle of rope feed-back on the winch drum (extreme example shown). There may be unavoidable circumstances requiring this mode, though in general it is not recommended unless applied in stages by moving the anchor point or vehicle to avoid the sharp angled rewind on the winch drum.
MILE MARKER INC. HYDRAULIC WINCH LIMITED WARRANTY Mile Marker, Inc. warrants each winch when used in normal service against factory defects in materials and workmanship to the original purchaser, (Commercial and Recreational Warranty) for the period of two (2) years. (Exclusion from this warranty are cables, the finish, and any condition Mile Marker determines to have been caused by misuse, abnormal use.) The Mile Marker hydraulic motor has a five (5) year warranty.
2121 Blount Road Pompano Beach, FL 33069 www.milemarker.
