User Manual
Grease Head
OPS-4427 Rev A
19
6 Testing
All testing is to be carried out in the designated test area and by suitably
qualified and competent personnel.
WARNING: Trapped air requires considerable time to compress and
when it is compressed is highly dangerous. It has enough stored
energy to separate parts with considerable force.
Fit appropriate test caps and blanking plugs. No flow tubes are required
for a body test
Fill with testing fluid bleeding off any air within the system
Apply a pressure of 500 psi and ensure pressure holds for a minimum
of 10 minutes
Increase pressure to 15,000 psi (Maximum Working Pressure), allow to
stabilise then maintain pressure for ten minutes with no leaks. (Testing
to be carried out to Test pressure only when decreed by maintenance
schedule)
Bleed off pressure, drain test fluid and dry
Remove test caps
Apply coating of de-watering solution to protect the bore and threads
Fit thread protectors and shipping cap plugs
On completion of all maintenance ensure the maintenance record sheet (Para
5.5) is completed
Summary of Contents for 145-4427-HV0
Page 19: ...User Manual Grease Head OPS 4427 Rev A 15 Figure 8 Assembly guide part 1...
Page 20: ...User Manual Grease Head OPS 4427 Rev A 16 Figure 9 Assembly guide part 2...
Page 21: ...User Manual Grease Head OPS 4427 Rev A 17 Figure 10 Assembly guide part 3...
Page 26: ...User Manual Grease Head OPS 4427 Rev A 22 Figure 11 Grease Head Assembly...
Page 27: ...User Manual Grease Head OPS 4427 Rev A 23...
Page 28: ...User Manual Grease Head OPS 4427 Rev A 24 Figure 12 Grease Head Assembly Detail...
