Product Description
Spring set (4), compatible with electric lift truck motor brush holder assemblies. Direct replacement for OEM part TC EMGP-18SS and cross-referenced as PM EMGP-18-SS, RA 570-236-113, and 078496. Manufactured from high carbon steel to OEM design standards for electric pallet truck applications.
Specifications
Material & Construction
| Spring Material | High carbon steel, stress-relieved for electrical application |
Part Numbers
| Cross-Reference Part Numbers | PM EMGP-18-SS; RA 570-236-113; 078496 |
| Equivalent Part Numbers | EMGP18SS; EMGP-18-SS |
Frequently Asked Questions
Q: What material is used in the TC EMGP-18SS spring set?
A: The TC EMGP-18SS consists of four springs manufactured from high carbon steel that has been stress-relieved to OEM design standards for electrical applications. High carbon steel provides superior fatigue resistance and maintains consistent spring force across thousands of compression cycles, critical for brush holder assemblies where spring tension directly affects motor performance and brush contact pressure.
Q: What are the cross-reference part numbers for the TC EMGP-18SS?
A: The TC EMGP-18SS is cross-referenced as PM EMGP-18-SS, RA 570-236-113, and 078496. These equivalent part numbers represent OEM and aftermarket variants from major electric lift truck manufacturers. Verify your equipment documentation lists one of these numbers before ordering to confirm direct compatibility.
Q: Which electric lift truck models use the TC EMGP-18SS spring set?
A: The TC EMGP-18SS spring set is compatible with electric pallet truck and lift truck motor brush holder assemblies from Crown, Toyota, Raymond, Yale, Hyster, Jungheinrich, Linde, Clark, Mitsubishi, CAT, and BT. Confirm your equipment motor part number and serial range before ordering, as spring force specifications can vary by model year and motor voltage.
Q: How does spring degradation affect motor performance?
A: When springs lose tension from fatigue or corrosion, brush contact pressure decreases, causing reduced motor torque, increased brush chatter, and accelerated commutator wear. Early symptoms include motor hesitation during load acceleration and intermittent loss of traction. Stress-relieved high carbon steel construction in the TC EMGP-18SS minimizes spring relaxation, but sets should be replaced every 18-24 months or when motor performance degrades.
Q: Why is spring tension critical in brush holder assemblies?
A: Spring tension maintains consistent contact between motor brushes and the commutator. Correct tension ensures uniform electrical current distribution, minimizes brush arcing, and prevents commutator damage. Insufficient tension reduces motor efficiency and increases noise; excessive tension accelerates brush wear. The OEM-designed spring force in the TC EMGP-18SS set balances these factors for reliable electric pallet truck operation across typical warehouse duty cycles.
