Instruction Manual
RFJ Series SA Flat Cylinders - V1.6
www.durapac.com
Page 5 of 12
4.0
Installation
IMPORTANT:
Always secure threaded port connections with high grade, non-hardening pipe
thread sealant. Teflon tape can be used if only one layer of tape is used and it is applied
carefully, two threads back, to prevent the tape from being introduced into hydraulic system,
which could cause jamming of precision-fit parts
CAUTION:
DO NOT allow the piston rod to rotate when installing adaptors. Damage to the
spring may prevent piston rod retraction
4.1
Know your cylinder, its limitations and how it operates before attempting to use. If in
doubt, contact Durapac.
4.2
Make hydraulic connections; use a pump release valve or a 3-way valve and one hose
for single-acting cylinder.
IMPORTANT:
Fully hand-tighten all couplers. Loose coupler connections will block
the flow of oil between the pump and the cylinder
4.3
Check all system fittings and connections to be sure they are tight and leak free.
4.4
Check oil level in reservoir before operating pump.
4.5
Remove air from the system – Position the cylinder so that the piston rod is pointed
down and the cylinder is lower than the pump. Advance and retract the cylinder
several times, avoiding pressure build-up. Air removal is complete when the cylinder
motion is smooth.
Figure 1 – RFJ Series Sectional Drawing
5.0
Operation
IMPORTANT:
Always use a flat, hard surface as a cylinder support plate
Cylinder gland nut/stop ring is designed to take the full load, to reduce cylinder wear,
use less than the full stroke where possible