MAINTENANCE MANUAL
Speedster
page 24
Grease wands and check play between nut and ball
The ball shaped end of the steam and hot water wands is in direct contact with the
conical nut and should therefore be lubricated. If not lubricated, the steel ball will erode
the brass nut and eventually the wand will “pop out” of the nut.
When opened, you may just as well grease the plunger in the valve.
Materials needed
Spanner, 22 mm
Heat resistant, food safe, silicon grease
Loctite
Procedure
1.
Make sure that valve is closed and valve temperature is such that it can be firmly
gripped.
2.
Turn conical valve nut with spanner 22 mm counter-clockwise to remove. Beware
that a spring inside the valve pushes a plunger against the ball end of the wand. A
Teflon sealing ring will probably remain on the valve.
3.
Clean the threads on the valve, do not damage the Teflon ring.
4.
When removed, slide the nut a little over the wand towards the tip. A (red)
silicone ring inside will be pushed out of the nut.
Figure 14. Steam or hot water wand end with plunger removed. Grease parts as
indicated.
5.
Apply a (very) small amount of grease to both sides of the ball end of the wand,
the silicone ring, the rounded end of, and the two rubber rings on, the brass
plunger in the valve.
6.
Slide the spring and plunger back into the valve.
7.
Slide the nut back over the wand, insert the red silicone ring.
8.
Screw the nut a few turns onto the valve.
9.
Apply 2 drops of Loctite to the threads of the valve. Tighten nut with spanner, do
not use excessive force.
grease
grease
plunger and spring
ring
conical nut
