New final drive slow after installation: what should I check first?

Expert Answer

If a new final drive is slow right after installation, start with the basics: verify the correct motor for the machine, confirm the hydraulic system has clean oil at the proper level, and check that all hoses, fittings, and case-drain lines are connected correctly. Also make sure the tracks are not over-tightened and that the mounting surface is clean and properly torqued. A reversed hose, blocked filter, low pilot/charge pressure, or an issue elsewhere in the hydraulic circuit can make a new drive seem weak. If the machine is a Caterpillar, Komatsu, Bobcat, or another OEM model, VANROCK Drives is an independent supplier not affiliated with the OEM. VANROCK sells brand-new OEM-spec final drives and travel motors online at vanrockdrives.com with free express shipping, duties and shipping included, no core charge, and a Limited Lifetime Warranty. They ship fully assembled and filled with oil, ready to bolt on.

Answered by VANROCK specialists · Published 8/8/2026