Bleeding The Hydraulic System; Lubrication - Varan NETB-02 Manuel D'utilisation

HYDRAULIC RAM MAINTENANCE
Monthly maintenance is recommended for the hydraulic ram. Any restrictions due to dirt, rust, etc. can cause the
either slow movement or extremely rapid jerks, damaging the internal components. The following steps are designed
to keep the pump maintained and operational.
1.
Lubricate the cylinder and the pumping mechanism with light oil.
2.
Visually inspect for cracked welds, bent, loose, missing parts or hydraulic oil leaks.
3. Inspect the hydraulic ram immediately if it was subjected to an abnormal load or shock load.
4.
Remove any hydraulic pump from service that is damaged, worn down or operates abnormally, until repaired by an
authorized service technician.
5. Check and maintain the ram oil level.
6.
Always store the hydraulic ram in the fully retracted position. This will help protect critical areas from corrosion.
7. Do not use brake or transmission fluids or regular motor oil as they can damage the seals. Always purchase and use
products labeled Hydraulic Oil

BLEEDING THE HYDRAULIC SYSTEM

Bleed excess air from the hydraulic system as follows:
1. Open the release valve by turning it counterclockwise.
2.
Remove the oil filler screw and fill the pump with hydraulic fluid.
3.
Wait 5 minutes for trapped air to rise to the surface.
4.
Pump the handle until the ram is fully extended to eliminate any air in the system.
5.
Check the oil filler hole and if necessary, top off with more hydraulic oil.
6.
Restore the oil filler screw. Close the release valve by turning clockwise.
7.
Test the ram several times for proper operation before putting it into use. Do not use the ram if it still does not work
properly. Have a qualified service technician service or repair the hydraulic system.
FLUSHING THE VALVE
1.
Lower the ram and securely close the release valve.
2. Manually lift the ram several inches.
3. Open the release valve and force the ram down as quickly as possible.

LUBRICATION

Inspect and lubricate the tool when required. Only use light oil to lubricate the tool. Other lubricants may not be
suitable and could damage the tool or cause a malfunction during use.
STORAGE
When not in use for an extended period, apply a thin coat of lubricant to the steel parts to avoid rust. Remove the
lubricant before using the tool again.
Store with the bottle jack in the closed position to protect the ram from rust
Varan Motors
BCIE SARL, gruuss-strooss 28, 9991 Weiswampach, Luxembourg
NETB-02
T: 00352/26908036 – F: 00352/26908040