Which Model Do You Have? — Choose the Right One for Your Pump

What's in the Box — All Models

Part 1 — Hardware Installation (All Models)

The installation procedure is identical across KWR-005, KWR-006, KWR-007, and KWR-008. The only difference is which port on the pump you connect to (4-pin vs. 6-pin).

1. Choose a Mounting Location — Away From the Motor

   Mount the receiver inside a sealed toolbox, tongue compartment, or directly on the trailer frame — preferably in a protected location away from the motor. Heat and vibration from the motor degrade the electronics over time. Keep the receiver away from hydraulic lines and anywhere it could be struck by the bed in motion.

2. Mount Both Antennas Outside Any Metal Enclosure

   This is the most common installation mistake. Metal completely blocks both the Bluetooth and RF signals. Run both antenna cables through a rubber grommet in your mounting box wall so the antennas sit in open air outside the box. Mount as high as practical on the tongue or frame for maximum range. The gold antenna serves the app; the silver antenna serves the key fob. Both must be outside metal for either to work.

3. Connect Red Wire to Battery Positive

   Connect the red wire to the positive terminal of the dump trailer battery, or to the terminal on the start solenoid that connects to the battery's positive cable. The inline 15-amp fuse on the red wire is your overcurrent protection — if the KWR stops working suddenly, check this fuse first before replacing any other component.

4. Connect Black Wire to Motor Ground

   Connect the black wire to the negative (ground) terminal on the DC motor body — not to the trailer frame. KTI's instruction: the power unit must be grounded directly to the battery negative terminal, and the KWR black wire shares this same ground point. A poor or frame-only ground is the most frequent cause of erratic KWR operation, false signals, and low-voltage symptoms even when the battery is fully charged.

5. Connect the HPU Connector to the Pump

   Disconnect the wired hand pendant from the pump's remote pendant port. Plug the KWR's HPU connector wire into that same port. KWR-005/006/008: 4-pin connector. KWR-007: 6-pin connector. If you want to keep the wired pendant available as a backup, plug it into the receptacle connector port (the shorter 14" wire from the KWR marked "A" in the manual). The pendant stays active even when the KWR is in sleep mode.

6. Power On and Test the Key Fob

   Flip the power on/off switch on the side of the receiver to ON. The LED should begin flashing green every 3–5 seconds — this confirms power is above 9V. Test each button on the key fob with the trailer in a safe, open position. Each button press should hold the LED solid while pressed. Verify each function (raise, lower, and gravity down if equipped) operates the pump correctly.

Receiver LED Status Guide

Part 2 — Key Fob Pairing (New or Replacement Fob)

Each receiver stores up to 4 key fobs. If you're adding a second fob, replacing a lost one, or setting up a new receiver from scratch, use this procedure:

1. Disconnect the Wired Pendant

   Unplug the wired hand pendant from the receiver before entering programming mode. Accidental button presses during pairing can actuate the pump unexpectedly.

2. Enter Key Fob Programming Mode

   Press and hold the small key fob pairing button on the receiver (labeled "F" on the KWR diagram) until the LED switches from flashing green to flashing red. Flashing red = programming mode active. You have a 3–5 second window to press the key fob. If the window expires, the receiver exits programming mode automatically — just press the pairing button again.

3. Press Any Button on the Key Fob

   Within the 3–5 second window, press any button on the key fob you want to pair. The LED will flash green for 2 seconds confirming the fob signal was stored, then return to flashing red — ready to accept another fob if needed. Repeat for each additional fob (up to 4 total).

4. Exit Programming Mode

   Press the pairing button again to exit programming mode. The LED will return to flashing green. Reconnect the wired pendant. Test the newly paired fob to confirm it controls the pump correctly.

Part 3 — Bluetooth App Download and Pairing

The KTI KWR Bluetooth App is a free app from KTI Hydraulics Inc. It works with KWR-005, KWR-006, KWR-007, and KWR-008.

1. Grant Permissions on Your Phone

   When you first open the app, grant both Bluetooth and Location permissions. Both are required — the app uses Location to scan for nearby Bluetooth devices, not to track you. On iPhone: Settings → KTI KWR Bluetooth App → enable Bluetooth and Location. On Android: grant all permissions when prompted at first launch.

2. Power On the KWR — Green LED Required

   The KWR receiver must be powered on and showing a green flashing LED. The Bluetooth app is disabled when battery voltage is below 9V — if the LED is flashing red, charge the battery first. The app will not connect to a low-voltage receiver by design.

3. Remove Any Existing System-Level Bluetooth Pairing

   If you previously paired the KWR through your phone's system Bluetooth settings (not through the app), go to your phone's Bluetooth settings, find the KWR device, and tap "Forget Device" before using the app. System-level pairing conflicts with the in-app connection and is the most common cause of app connection failures.

4. Scan for the Receiver

   Open the KTI KWR Bluetooth app and tap the scan button. Your receiver will appear in the list identified by its device number, which is printed on a sticker on the receiver. If no devices appear: confirm the receiver is on (green LED), you're within 30 feet with no metal obstructions between you and the Bluetooth antenna, and both Bluetooth and Location permissions are granted.

5. Enter the Pairing Password: 123456

   When prompted, enter 123456 (factory default for all KWR units). Tap Connect. The app will display the control panel with your function buttons and a live battery voltage readout — one of the key advantages of using the app over the key fob alone.

6. Test All Functions

   Test each function from the app with the trailer safely positioned. Monitor the battery voltage reading — above 11.5V under load is normal; below 11V under load suggests the battery should be charged or replaced before a work day. If Bluetooth pairing fails, turn the KWR unit OFF and back ON using the side switch, then repeat the scan.

Model-Specific Notes

KWR-005 — The Most Common Dump Trailer Controller

Two functions: Power Up and Power Down. Plugs into the 4-pin port on all standard KTI double-acting pumps. If your dump trailer came with a 2-button wired pendant (the KTI 395-55 style), the KWR-005 plugs into the same connector on the pump. The wired pendant can stay connected to the KWR as a backup.

KWR-006 — For Single Double-Acting Circuits (DC26-Type)

Three functions: Power Out, Power In, and Gravity Down. Designed for pumps like the DC26-S where the bed is raised under power (Power Out), lowered under power (Power In), or dropped by gravity with just the solenoid opening (Gravity Down). The 4-pin connector is the same as the KWR-005. If your pump has a 3-button wired pendant, the KWR-006 is the wireless equivalent.

KWR-007 — 4-Function, 6-Pin Connector

Four functions across two circuits: Up/Down for cylinder 1 and Out/In for cylinder 2. Uses a 6-pin connector — will not fit the 4-pin port on single-circuit pumps. Used with dual double-acting pumps that control two separate cylinders (for example, a dump body and a tailgate cylinder). Verify your pump has a 6-pin remote port before ordering the KWR-007.

KWR-008 — Double-Acting with Gravity Down Option

Three functions: Power Up, Power Down, and Gravity Down. The 4-pin connector is the same as the KWR-005. Use the KWR-008 instead of the KWR-005 when you want the option to drop the bed by gravity (without running the motor) — useful for extending motor life on frequent dumps. Gravity Down on the KWR-008 opens the solenoid valve without activating the pump, so the bed drops at the speed set by the flow control valve.

Frequently Asked Questions