Product Description
Zerk
Frequently Asked Questions
Q: What is a zerk and what is its function on a Prime Mover lift truck?
A: A zerk, or grease fitting, is a lubrication port that accepts a grease gun for periodic maintenance. The PR 310546-000 allows technicians to inject grease into pivot joints and bearing assemblies on Prime Mover electric lift trucks without disassembly.
Q: Where is the PR 310546-000 zerk typically located?
A: Zerks are usually located at pivot points, wheel forks, and wheel fork bushings. Consult your Prime Mover service manual for the specific location on your model. Multiple zerks may be present on a single truck.
Q: What type of grease should be used with the PR 310546-000?
A: Use a standard lithium-complex or multipurpose NLGI Grade 2 grease. Prime Mover equipment operated in cold storage environments may require Low Temperature or Cold Storage Package lubricants. Verify your equipment specifications before selecting grease.
Q: How often should the PR 310546-000 zerk be lubricated?
A: Lubrication intervals depend on truck model and operating conditions. Standard maintenance intervals are typically every 200 to 400 operating hours or quarterly, whichever comes first. High-use facilities may require more frequent greasing.
Q: What indicates a clogged or damaged zerk?
A: Signs include inability to inject grease with a hand gun, squeaking or creaking at pivot points, or visible bearing wear. A damaged zerk threads may require replacement. If grease does not flow, stop applying pressure to avoid damaging the fitting.