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Mile Marker SEC12 - User Manual

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Installation & Operator’s
Manual
2121 BLOUNT ROAD
POMPANO BEACH, FL 33069 USA
MILEMARKER.COM
INFO@MILEMARKER.COM
800.886.8647
TOLL FREE
76-50115BW (STEEL CABLE)SEC4500
4,500 lbs.
SEC12
12,000 lbs.
76-53251BW (SYNTHETIC ROPE)
76-50251BW (STEEL CABLE)
SEC95
9,5000 lbs.
76-53246BW (SYNTHETIC ROPE)
76-50246BW (STEEL CABLE)
SEC8
8,000 lbs.
77-53141W (SYNTHETIC ROPE)
77-50141W (STEEL CABLE)
SEC15
15,000 lbs.
76-53260W (SYNTHETIC ROPE)
76-50260W (STEEL CABLE)

Questions and Answers

  • W
    williamsjohnAug 13, 2025
    What to do if Mile Marker SEC12 motor does not turn on?
    • H
      Holly HopkinsAug 13, 2025
      If the Mile Marker Winches motor doesn't turn on, several issues could be the cause. First, ensure the safety switch is ON. Check that the switch assembly is firmly connected to the connector. Inspect the battery cable and tighten any loose nuts on the cable connectors. If the solenoid is malfunctioning, tap it to free the contact while applying 12 volts directly to the coil terminal; you should hear a click. If these steps don't work, the switch assembly or the motor itself might be defective and require replacement. Also, check if water has entered the motor; if so, drain and dry it, then run it in short bursts without any load until it's completely dry.
  • S
    Scott RyanAug 16, 2025
    Why Mile Marker Winches motor runs slowly or without normal power?
    • T
      Thomas RussellAug 16, 2025
      If your Mile Marker Winches motor runs slowly or lacks normal power, it could be due to a battery that runs down. Recharge the battery by running the vehicle engine. Another potential cause is insufficient current or voltage, in which case you should clean, tighten, or replace the connector.
  • J
    Jose WilliamsAug 20, 2025
    Why Mile Marker SEC12 motor runs too hot?
    • J
      John RussellAug 20, 2025
      The Mile Marker Winches motor may run too hot due to a long period of operation. To resolve this, let the winch cool down periodically.
  • J
    John MossAug 25, 2025
    What to do if Mile Marker Winches motor runs in one direction only?
    • M
      Michael GlennAug 25, 2025
      If your Mile Marker Winches motor only runs in one direction, the issue might be a defective or stuck solenoid. Try tapping the solenoid to free the contacts. If that doesn't work, you may need to repair or replace the solenoid. Another possible cause is a defective switch assembly, which would also need to be replaced.
  • F
    floresstephanieAug 27, 2025
    What to do if Mile Marker Winches motor runs but cable drum does not turn?
    • K
      Kristin PerezAug 28, 2025
      If the Mile Marker Winches motor runs but the cable drum does not turn, the clutch might not be engaged. Turn the clutch gear to the IN/ENGAGED position. If that does not work, ask a qualified technician to check and repair.
  • L
    lindseychristianSep 4, 2025
    Why does my Mile Marker Winches motor run slowly or without normal power?
    • T
      Tina FloresSep 4, 2025
      If your Mile Marker Winches motor runs slowly or lacks normal power, it could be due to: - A battery that runs down: Recharge the battery by running the vehicle engine. - Insufficient current or voltage: Clean, tighten, or replace the connector.
  • B
    Brian McculloughSep 8, 2025
    Why does my Mile Marker Winches motor run too hot?
    • M
      Mark AnthonySep 8, 2025
      If your Mile Marker Winches motor runs too hot, it could be due to a long period of operation. To resolve this, let the winch cool down periodically.
  • T
    tsandersDec 1, 2025
    What to do if my Mile Marker SEC12 Winches motor does not turn on?
    • M
      Michael TaylorDec 1, 2025
      If your Mile Marker Winches motor fails to start, there are several potential causes: - Ensure the safety switch is not OFF. - Verify the switch assembly is firmly connected to the connector; if not, insert it correctly. - Check for loose battery cables and tighten the nuts on the connectors. - A malfunctioning solenoid could be the issue; tap it to free the contact while applying 12 volts to the coil terminal directly to check for an audible click. - The switch assembly might be defective and require replacement. - The motor itself could be defective; check for voltage at the armature port when the switch is pressed, and if voltage is present, replace the motor. - Water may have entered the motor; in this case, drain and dry it, then run it in short bursts without any load until it’s com...

Summary

Safety Warnings

Precautions

Getting Started

Unpacking Your Winch

Instructions for unpacking the new Mile Marker winch and verifying all parts are included.

Winch Mounting

Guidance on securely mounting the winch to a solid structure or vehicle for optimal performance.

Clocking Instructions

Control Box Installation

Wiring Instructions

Wiring the Control Box

Procedure for connecting the control box and battery cables to the winch.

Winch Operation

Operational Instructions

Step-by-step guide on how to operate the Mile Marker winch, including clutch engagement and remote use.

Winching Tips & Techniques

Self Recovery

Winch Maintenance

Troubleshooting

Mile Marker SEC12 Specifications

General IconGeneral
BrandMile Marker
ModelSEC12
CategoryWinches
LanguageEnglish

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