Enerpac THQ-Series - Manual (Page 3)

INSTALLATION
Hydraulic Hoses
1. Before operating, visually inspect the system.
2. Check to be sure there are no cracks, kinks, cuts, or other damage
which might cause the hose to leak. Rubber guards protect crimped
areas at each end of the hose.
3. Make sure all hose ends, couplers, or union ends are
clean and threads are in good condition.
4. Hose should not be twisted or bent too sharply. The
bend radius should always be at least 4.5 inches
(11,4 cm). Always use as few bends as possible.
5. Do not drop heavy objects on hose. A sharp impact
may cause internal damage to hose wire strands.
Applying pressure to a damaged hose may cause it
to rupture.
6. Make sure all hose connections between pump and
cylinder are tight and leak free. Do not over-tighten connections or
use tools to tighten connections. Excessive torque may cause
premature thread failure and may cause high pressure fittings to split
at pressure lower than rated capacity. When using quick disconnect
fittings, make sure the fittings are correctly and completely fastened
together.
Fittings and Tubing
The following guidelines should be used whenever fittings are used in
hydraulic systems.
1. Care must be taken that threaded fittings are not cross-threaded.
2. Be sure connections are sealed using high grade pipe thread sealer.
3. Tape or sealing compound should be confined to threaded areas only.
Keep first thread free of tape to avoid pieces of tape getting into the
system.
CAUTION
Use care to ensure that pieces of tape do not enter the hydraulic system.
Pieces of tape in the fluid impairs fluid flow, causing system malfunctions.
4. Vibration and system shock-loads are the primary cause of
fitting/tubing leaks. Use commercially available tube supports to
extend the life of your system. The most critical area to use a tube
support is 4-7 inches behind a fitting.
5. Tubing is not rigid. Long runs must be supported. Unsupported
sections can lead to premature fitting failure. Always hard mount
valves and gauges. Never allow tubing to be their sole support!
(3)
R = 4Ω in.
R = 11,4 cm