SECTION 7
HIGH PRESSURE WATER
p. 7-5
80078868
CAUTION
!
7.2.2 HP Cylinder “Jug” (HP Cyl., Sealing Head, Hard Seal End Cap
Disassembly / Re-assembly
NOTE— KMT Waterjet recommends removing the HP cylinder/ sealing head/ HSEC
AS AN ASSEMBLY for servicing the plunger HP seals, plunger, hydraulic seals, etc.
KMT Waterjet DOES NOT recommend loosening jackbolts except to service the
sealing head inlet HP check valve, cone seat, etc. Refer to Table 7.1 for
recommended disassembly / re-assembly practices.
Due to the weight (approx. 55 lbs) of the HP cylinder jug,
adequate support should be provided to prevent damage to
the plunger or seals during disassembly/ re-assembly. See
Figure 7-3 for suggested special tools to support the HP
cylinder jug for this procedure.
Figure 7-3
• Use Cradle Tool (2) to support HP Cylinder Jug (1) while removing or installing
Jug (1) from Hydraulic Cylinder (6).
• Align threads at PT “C” by:
a. Positioning plunger fully extended, and
b. Tighten.
Parts reference:
1 JUG-HP Cylinder
2 Cradle, HP Cylinder Support
3 HP Cylinder
4 Wrench, HP Cylinder
5 Nut-Cradle Clamp
6 Cylinder Head-Hydraulic
7 Wrench-End Cap
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