Section 3
Maintenance
20412940
8-2012/Rev 04
3-2
Maintain a clean, dust and dirt free work area for maintenance.
Use only clean, dry air and clean, filtered solvent when flushing parts.
Use lint free cloths for cleaning.
Use extreme care when aligning close tolerance parts for assembly. Do not force the parts
together. If parts bind during assembly, they must be disassembled and re-aligned.
Use only original KMT Waterjet replacement parts for consistent performance and
reliability; and to protect equipment warranty.
To avoid unsafe conditions and the risk of equipment damage, operating personnel and service
technicians must carefully read and follow the procedures in this manual.
High Pressure System Maintenance
The high pressure system is conveniently mounted on a drip pan. All service components are
readily accessible, and can be removed from the unit easily for maintenance and service.
High pressure fittings, valves and tubing must be rated for 60,000 psi (4,137 bar). Failure
to use properly rated components may result in component failure, equipment damage and
personal injury.
Do not over-torque fittings to stop leakage.
Ensure all components are clean, free of burrs, metal particles, dirt and dust prior to
assembly.
After servicing high pressure components the high pressure water system must be thoroughly
flushed to remove any debris or contaminates.
1. Operate the intensifier for a short period with the nozzle valve open and the orifice
removed.
2. Turn the intensifier off and install an orifice.
3. Turn the machine on and increase the operating pressure in gradual increments. Check all
high pressure connections for leaks.
Many components are lubricated prior to assembly. Table 3-1 lists the recommended lubricants
and their applications. Substitutions are not recommended.
Table 3-1
Lubrication Specifications
Description Application Part Number
Pure Goop, 1 ounce Stainless steel threads and metal-to-
metal joints
10084440
FML-2 Grease, 14-1/2 ounce O-rings, backup rings, bearing rings,
seal components
10087385
JL-M Grease, 16 ounce Non-stainless steel threads 49832199
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