KTM STREAMLINE L-IV 50, Operation And Service Manual, Page: 79 / 178

SECTION 7
HIGH PRESSURE WATER
p. 7-8 80078868
WARNING
!
head should be in contact with HP cylinder. Unscrew HSEC until LP water
inlet fitting is conveniently positioned.
Do not unscrew more than one
full turn.
4. Thread each 7/16-20 jackbolt to make contact with sealing head. Refer to
Table 7-5. Torque each jackbolt using a crossing pattern. Torque to 35 ft-lbs
max in two stages (e.g. 20 ft-lbs, then 35 ft-lbs). Verify correct maximum
torque by repeating third stage, except tighten in circular pattern (4
th stage,
Table 7-5).
5. Re-connect HP and LP piping / hoses per paragraph 7.2.1 above.
Verify that proximity switches (2 ea) are properly installed
Failure to tighten proximity switch hold down screws will
result in hydraulic oil spraying in general directions.
6. Restart KMT Waterjet pump, first operating in LOW pressure mode to flush
out air in HP components and also to check for obvious leaks. Switch to HIGH
pressure after 5-10 minutes of LOW pressure operation, watching for
obvious leaks. Be ready to shut off the pump if leaks appear. Remedy leaks
then repeat start procedure, moving from LOW pressure to HIGH pressure
soon after intensifier starts pumping water (no further need to flush air
from lines).
7.2.4 HP Plunger Seal Service-- Disassembly / Re-assembly
1. Remove HP and LP piping/ hose, then remove HP cylinder jug following
procedure 7.2.2, above.
2. Thread HP plug and gland fitting (see Figure 7-18) into HP check valve gland
nut. Hand tight is sufficient.
3. Stand HP cylinder jug upright with jackbolts resting on platform of wood
blocks or stand tool item (2), Figure 7-4.