MO 12X3077

Frequently Asked Questions

Q: What is the MO 12X3077 wiper and what does it do?
A: The MO 12X3077 is a wiper seal component for Mobile MLX55 manual pallet jacks. Wiper seals sit at the rod entry point of hydraulic cylinders and remove contaminants, water, and dust from the piston rod surface as it extends and retracts. This prevents external dirt from entering the cylinder bore and damaging internal seals and piston surfaces.

Q: Which Mobile pallet jack model uses the MO 12X3077 wiper?
A: The MO 12X3077 is designed for Mobile MLX55 manual pallet jacks. It fits in the wiper groove at the cylinder port opening. If you operate your equipment in wet, dusty, or outdoor environments, maintaining functional wipers extends cylinder seal life significantly.

Q: What happens if the MO 12X3077 wiper is worn or missing?
A: A worn or missing wiper allows external contamination to enter the cylinder bore. This causes internal seals and the piston rod to wear prematurely, leading to hydraulic fluid leakage and loss of lift performance. Replacement of the wiper is a low-cost preventive measure compared to replacing entire cylinder assemblies. Replace wipers annually in high-use or dirty environments.

Q: Is the MO 12X3077 wiper sold individually or as part of a kit?
A: The MO 12X3077 is available as an individual wiper component. However, many technicians order wiper seals as part of a complete seal kit that includes pump seals, U-Cup seals, and rod wipers. This ensures all hydraulic system seals are replaced together during a maintenance event, minimizing future downtime.

Q: What is the typical replacement interval for the MO 12X3077 wiper?
A: Wiper seals should be inspected annually and replaced when they show visible wear, cracking, hardening, or loss of material. In wet, cold storage, or outdoor applications, replacement may be needed every 12 to 18 months. The wiper is one of the most affordable preventive maintenance items for pallet jacks.