409-35036
Rev A
12
of 15
6 Maintenance
6.1 Removing air
Removing air from the hydraulic system helps the cylinder to extend and retract smoothly.
DANGER
The pump has an unvented reservoir. High pressure in the reservoir can rupture the casing, causing injury and equipment
damage.
Never
try to return more hydraulic fluid to the reservoir than it can hold.
1. Vent the pump reservoir (for vented pumps only).
2. Close the release valve (see Figure 5).
3. Position the pump at a higher elevation than the crimping head (Figure 6).
Figure 6: Removing air
1
Air
2
Direction of air flow
4. Position the crimping head with the plunger end down (up if using a tool with pull cylinder).
5. Operate the lever to fully extend the cylinder (retract if using a pull cylinder).
6. Open the release valve to retract the cylinder (extend if using a pull cylinder). This forces the trapped
air to move up to the pump reservoir.
7. Repeat steps 1-6 as needed.
8. Add hydraulic fluid if necessary (see section 6.2).
