Section 9
High Pressure Water System
20412997
8-2012/Rev 12
9-12
Figure 9-8: High Pressure Cylinder Assembly Removal and Installation
NOTE
If thread or metal surface galling is detected during removal, galled surfaces and
threads must be filed, sanded and lubricated prior to reassembly. See the
procedure, High Pressure Cylinder Maintenance.
High Pressure Cylinder Assembly Installation
1. Verify that the high pressure cylinder threads and alignment surfaces are adequately
cleaned and lubricated with Pure Goop, and that the threads have been sanded and dressed
if galling was encountered during removal.
2. Verify that the high pressure seal assembly, packing follower and cylinder liner are
correctly installed. Align the cylinder assembly with the plunger and the hydraulic
cylinder head, using the cradle tool to support the weight. Carefully push and lift the
assembly into position until the threads are ready to engage.
3. Thread the cylinder assembly into the hydraulic cylinder head.
NOTE
If galling occurs during threading, remove the high pressure cylinder assembly and
inspect the mating surfaces and threads. Repair surfaces, thoroughly clean,
lubricate and thread the cylinder assembly into the hydraulic cylinder head.
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