Product feature: Cat Advansys pumps and motors

Date: 30.08.2021

Cat pumps and motors are designed by Caterpillar to deliver optimal Cat machine performance

For optimal hydraulics system operation, the performance and durability of pumps and motors is critical. Since they’re precisely designed and manufactured to meet the requirements of Cat equipment, genuine Cat pumps and motors offer high standards of quality and reliability, its manufacturer says.

Here’s another critical point: don’t wait for failure. As Caterpillar’s aftermarket services consultant for hydraulics Chloe Xie says, "Waiting for failure can result in unplanned downtime and additional costs. So be sure to watch for warning signs and repair indicators."

It’s sound advice. The table below highlights some of the key repair indicators and possible causes. Keep an eye out for them or talk to a Cat dealer about the right service options.

Product feature: Cat Advansys

Cat pumps and motors are designed by Caterpillar to deliver optimal Cat machine performance, its manufacturer says. Cat pumps and motors are also made using
high-grade materials to help deliver toughness, power, productivity, and reliability.

Cat dealer also offers aftersales support by ensuring customers always have the right parts and service solutions, customised to their equipment and operation. With their expertise in Cat components and their applications, dealers can guide customers in properly fine-tuning and optimising the hydraulic pump and motor control settings.

Their diagnostic services can pinpoint problems and provide solutions. Many Cat dealers use specialised equipment such as a testbench for testing and tuning pumps and motors, which helps them be more precise in their repair and replacement recommendations. This can reduce rework and keep service and repair bills to a minimum.

Repair indicators	Possible causes
Leaks	System pressure too high Scored or bent cylinder rod Failed or incorrect seals Improperly torqued hose connection Worn or damaged hoses, tubes, and fittings Missing guards
Excessive cylinder drift	Valve adjustment needed Scored cylinder Failed seal or seals Scored valve Contaminated oil
Slow cycle times	Engine performance Faulty valve Low fluid level Worn system components Contaminated oil
Noisy operation	Engine performance Low fluid level Restriction in system Aeration Worn system components Faulty relief valve
System overheating	Faulty oil cooler Low fluid level Plugged filter Worn system components Faulty relief valve Wrong viscosity or contaminated oil Restriction in system Poor operator habits