CR 073387

Frequently Asked Questions

Q: What is the CR 073387 torsion spring used for?
A: The CR 073387 is a left-hand torsion spring designed for Crown M Series Stackers. Torsion springs on electric pallet jacks provide rotational tension on the mast or lifting mechanism. The CR 073387 is the left-side component of a pair; it must be used with the matching right-hand spring CR 073388 for proper balanced operation.

Q: Can I use CR 073387 as a single replacement or must I buy both LH and RH springs?
A: Torsion springs work in pairs—left and right—to distribute load evenly. Replacing only the CR 073387 left-hand spring will create imbalance and may cause the mast to bind or tilt. Always replace both springs together: CR 073387 (LH) and CR 073388 (RH). This ensures balanced torque and prevents premature wear on the mast assembly.

Q: How do I know if the CR 073387 torsion spring has failed?
A: Signs of torsion spring failure include mast tilt to one side, uneven lifting, difficulty raising the forks, or visible sagging of the mast assembly. If the Crown M Series Stacker feels unbalanced or hard to operate, both the LH and RH torsion springs may have lost their rate and should be replaced as a set.

Q: Is CR 073387 compatible with Crown models other than M Series Stacker?
A: No. The CR 073387 is engineered specifically for Crown M Series Stacker. Do not attempt to use this part on PE 4000, PE 4500, or other Crown models without verifying part compatibility first. Torsion spring specifications vary by model; using the wrong spring can damage the mast and lift mechanism.