SECTION 3 - M. FRAME, ADJ. RING, TRAMP REL. & CLRNG JACK ASSY
MP SERIES CONE CRUSHER TECHNICAL REFERENCE MANUAL
3-21
3.4.6 Clearing Jack Removal
A leaking clearing jack is a condition which should
prompt attention. A leaking cylinder will result in
the ring not raising during a clearing operation.
Leaky seals could also cause the ring to creep down
after being raised during a clearing operation. To
remove a leaking cylinder for replacement or repair
proceed as follows (refer to Figure 3-16):
1. Lock out and tag all electrical power
supplied to the power unit and Crusher.
2. Disconnect hose from the cylinder. Plug and
cap open ports to prevent loss of oil and
prevent the entry of dirt.
3. Attach a sling around the cylinder, and
attach the free end of the sling to a suitable
lifting device. Take up the slack in the sling.
4. Attach a pipe strap wrench around the
cylinder head of the clearing jack and turn
the jack in a counterclockwise direction as
seen from below the cylinder and as shown
in Figure 3-16.
5. After the jack is free of the main frame
flange slowly lower the cylinder until the
cylinder push rod clears the underside of the
main frame flange.
6. Refer to Section 12 for clearing jack
cylinder rebuilding instructions.
Figure 3-16 Clearing Jack Cylinder
Callout Description
1 Adjustment ring
2 Main frame
3 Unscrew
4 Clearing jack cylinder
5 Rod seal
6 Tack weld
1
4
3 3
6
2
6
2
5
MP1000 MP800
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