HydraMaster Steamatic 8800 TMU, Owner'S Manual, Page: 51 / 148

5-9 - Machine Maintenance
Steamatic 8800 TMU
Servicing Valves on the High pressure pump
Removing a Valve
Remove the valve cap (30 mm) and extract the valve assembly (see 1. figure 5-1).
Remove the valve assembly (retainer, spring, valve plate, valve seat) from the valve 2.
cavity.
Remove the o-ring and support from the valve cavity.
3.
examine the o-ring and replace if there is any evidence of cuts, abrasion, or 4.
distortion.
Inspect the manifold for wear or damage (see
5. figure 5-2).
Inspect the old valves for wear or damage. only one valve kit (P/N 000-078-519) 6.
is necessary to repair all the valves in the pump. (The kit includes new supports,
o-rings, valve seat, valve poppet, spring and retainer; all are pre-assembled.)
figure 5-1. remove Valve Cap and Valve assembly
figure 5-2. Inspect manifold and old Valves