KTI LSPC-080-4-00-M Load Holding Valve with Manual Override — Emergency Bed-Down Release for Dead-Battery Conditions — Double-Acting Dump Trailer Hydraulic Power Units

The LSPC-080-4-00-M is the upgraded version of KTI's standard load-holding cartridge valve — adding a manual override screw to the cartridge body. Turn the override screw with a wrench and you can gravity-drop the dump bed even with a completely dead battery or failed solenoid. It's cheap insurance for anyone who relies on their dump trailer for work and can't afford to be stuck with a loaded bed up.

Functionally identical to the standard LSPC-080-4-00 cartridge for everyday operation. The only difference is the field-accessible override — invisible during normal use, lifesaver when you need it.

🔧 What the Manual Override Adds

During normal operation, the valve behaves exactly like the standard LSPC-080-4-00 — powered solenoid opens the pilot, cylinder lowers under control. The manual override screw gives you an additional mechanical path to open the valve without electrical power:

• Dead battery? Crack the override screw to release load pressure and gravity-drop the bed safely.
• Blown fuse or failed solenoid coil? Same — override gets you out of a jam.
• Battery conservation in the field? Some operators use gravity-down via override to save battery draw on the down cycle.

⚠️ Important Application Note

Per KTI documentation, this valve is designed for Power Up / Power Down kit systems — it will NOT work on Power Up / Gravity Down pumps. If you're not sure which system you have, call us at 517-225-1991 and we'll identify it from your pump's model number or nameplate before you order.

📐 Specifications

✅ Compatible Hydraulic Power Units

• KTI DC26-S and all standard KTI double-acting (power up / power down) hydraulic power units
• KTI DC-4000 series dump trailer pumps
• DC-45597, DC-45598 variants
• Dump trailers from Load Trail, Big Tex, PJ Trailer, Griffin, Diamond C, and most major brands using KTI power-up/power-down pumps

🔄 Choose the Right Version

💡 Pro Tips — Installation & Use

• Check your pump type first. Manual override version only works on Power Up / Power Down. If you have a gravity-down pump, order the standard LSPC-080-4-00 (or the correct gravity-down equivalent).
• Inspect cavity for contamination before installing. Burrs or metal shavings in the manifold are the #1 cause of repeat valve failure.
• Lubricate all O-rings with clean hydraulic fluid before seating the cartridge. A dry O-ring will shear on install.
• Final torque: 18 ft-lb with a 15/16" deep socket. Do not exceed.
• Mark the override screw position. After install, note the "closed/normal" position of the override — customers often forget and leave it partially open, causing constant bed drift.
• Operating the override: Only turn it in an emergency. Small counterclockwise rotation relieves pressure — crack it slowly under load. Close it fully when the bed is down.

❓ FAQ

Why is this worth the upgrade over the standard valve?
Because getting stranded with a loaded dump bed up is a workday-killer. Dead batteries happen. Failed solenoids happen. A working manual override turns a tow-truck call into a 30-second screw turn.

Can I use the manual override as a regular operation method?
Technically yes — some operators use it to gravity-down the bed to save battery. But it's designed as an emergency tool, not a primary control.

Is the solenoid still functional?
Yes, completely. The valve operates identically to the standard LSPC under normal electrical control. The override is a separate mechanical path.

Does this fit power-up / gravity-down pumps?
No. This cartridge is specifically for power-up / power-down (double-acting) systems. Call 517-225-1991 if you're unsure which you have.

Questions? Call or text AAA Trailer at 517-225-1991 — we stock the full KTI hydraulic line and can help you identify the right replacement part. Same-day shipping from Howell, Michigan.

📞 Call/Text: 517-225-1991   🌐 AAATrailer.com

Related KTI Hydraulic Products

• KTI LSPC-080-4-00 Standard Load Holding Valve
• KTI LSV2-08-4CO Directional Valve (up-circuit pair)
• KTI LC-08-S-5B Square Coil Actuator

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• Address: 4675 East Grand River Ave, Howell, MI 48843
• Phone: (517) 225-1991 (Call or text)
• Hours: Monday to Friday: 10:00 AM - 5:30 PM | Saturday: By appointment

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