Procedure

Procedure

This procedure is completed in two stages:

• Bleed the left hand ram by disconnecting it from the pump.
• Bleed the right hand ram and pump by disconnecting both from the left hand ram.

Bleed the left hand ram:

1. Remove the roof hydraulic system.
2. Disconnect the left cylinder union nuts at the pump.



3. Submerge the two tubes in hydraulic fluid.
4. Fully extend the left hand ram to draw in clean hydraulic fluid.
5. Invert the cylinder, pause for any air in the cylinder to rise to the top and then fully retract the ram to expel any remaining air.
6. Reconnect the tubes to the pump and tighten the union nuts.
7. Remove the reservoir filler plug and fill to the maximum level indicated on the fluid reservoir. Refit the filler plug.

Bleed the right hand ram and pump:

1. Release the left hand cylinder tubes at the cylinder and submerge the tubes in hydraulic fluid.
2. Turn the motor control valve to the Electric position.
3. Fully extend the right hand ram to draw in clean fluid.
4. Invert the right hand cylinder and pause for any trapped air to rise to the top.
5. Fully retract the right hand ram to expel any trapped air.
6. Reconnect the two pipes to the left hand cylinder and tighten the union nuts.
7. Remove the filler plug and top up the reservoir with clean fluid to the maximum level indicated on the reservoir. Refit the filler plug.
8. Refit the roof hydraulic system.