Construction material shops best price vickers 25vq excavator hydraulic pump

Operating oil

Anti-wear hydraulic oil is recommended for better performance and longer life. viscosity range: 17-38cst(2.5-5 E)

Proper fluid condition is essential for long and satisfactory life of hydraulic components and systems. filtration: the filtration rating should not be

lower than 25 u m filter of 70-150 um on the inlet port is recommended and its delivery should not be lower than 200% that of pump

Operating temperature: 10-60 C

Installation

Foot and frame for pump must be reliable, solid and good in vibration absorbence

Horizontal mounting is recommended to maintain necessary case fluid level, concentricity of shafts between pump and motor is important to pump life and should be within 0. 1 mm. It is better to use flexible coupling to avoid harmful effects

The oil pump allows the inhalation vacuum as 110 mm column of mercury. Installation should near fuel tank, inhaling the height can not be big in 500 mms

To reduce noise and vibration of system caused by topped air, attachment flange at inlet port, all fittings and piplines must be strictly sealed

The diameter of absorb pipeline should not smaller than that of inlet

There should be a plank in the tank to separate bubble and dirty thing from used oil Return pipeline under oil is recommended(not connect with

inlet) for avoid bubble

Start

 Before starting pump, please check up if the inlet and outlet have been correctly connected and the rotation of the pump is inline with the nameplate. (CW without notice).

 After confirming it is able to work well without burthen, please start.

 When initially starting the pump after long-time unused, removing all trapped air from the system can be accomplished by loosening flange or connections.

Maintenance

 Please inject defend rust oil in the pump, plaint the surface with defend rust grease and then cover ports, if you do not want to use it right now.

 Please check up oil periodically, while if the oil can not meet the demand, replace it and clean up tank.

 Purging of filter regular is recommended

 Keep the normal level of oil in the tank. When capability of tubing and tank are large,even if injected enough oil.Because when starting, the level of oil would fall then please add some oil. Please observe the level of oil and add some oil when needed

 After a period of working, it is likely that the install bolt and flange of inlet and outlet would loose because of vibrating.please tight them.

The cartridge design of V, VQ, SQP, PV2R series vane pumps offers fast and efficent field service ability, when replacing the catridge,seals inside the pump should be cheched to avoid them crimping when tighting the screws, they should be treated with even force in diagonal direction.