
72183211
8-2016/Rev 01
ORIGINAL INSTRUCTIONS
5-1
SECTION 5
SERVICE PROCEDURES
5.1
Overview
Procedures for installing mandatory maintenance kits as well as the replacement of worn parts
that have reached the end of their life are included in this section. Follow the service guidelines
listed below to achieve optimum performance and component life,
Read and thoroughly understand each maintenance procedure before starting the work.
Do not substitute fluids, sealants or lubricants specified in the procedures.
Handle critical parts with care and avoid scratching or denting high pressure components.
All components containing high pressure water are susceptible to stress fatigue
accelerated by nicks, scratches or other surface disruptions. Replace damaged
components.
Protect all machined and lapped mating surfaces against nicks, scratches and burrs.
Keeping components clean is critical. Airborne dirt and abrasive have serious detrimental
effects on part life.
Clean and blow compressed air on parts being reassembled. Clean all parts with fresh,
clean solvent that does not leave a residue, such as isopropyl alcohol.
Life expectancy of high pressure seals and other high pressure components is related to stress on
the part, and is a function of stroke rate, water pressure and inlet water temperature. Exceeding
pump ratings can lead to increased costs and downtime.