Maintenance
All
S
P Rock Valve Model
s
Startup 250:Users:Danny:Desktop:Operation manuals:line
pumps:All SP Rock Valve models:Frame files:Maintenance.fm
Operation Manual -
119
Push the emergency stop button on the operator’s
panel. Stop the engine and put the key in your pocket.
There is a groove in the ram flange that will line up
with a groove in the cylinder flange. A 1/2 inch x 2 1/2
inch bolt with nut will drop into this groove and allow
you to pull the ram out (Figure 58). The fit should be
snug, but there’s no need to tighten the nut with tools,
and note that the ram flange and cylinder flange are
shown outside of the waterbox for clarity of the
illustration.
Start the engine. Release the emergency stop button,
and slowly retract the cylinder rod until the ram is clear
of the material cylinder (Figure 59).
Push the emergency stop button on the operator’s
panel. Stop the engine and put the key in your pocket.
Remove the nut and bolt, and the ram will be free to
come out of the waterbox.
Clean and inspect the bolts and cone washers, the dog
bone, and the cylinder flange. Replace any damaged or
worn parts with new ones.
Figure 58
S
howing the removal bolt groove
s
on the
flange
s
Figure 59
S
lowly bring the ram into the waterbox
Home
TOC
TOC
