COPYRIGHT © 2019 SANDVIK MINING AND CONSTRUCTION OY
Page 52 - Maintenance
Replacing teeth
RPV14R, RPV22R, RPV29R, RPV39R, RPV53R, RPV75R
3. REPLACING TEETH
WELDING TOOLS AND TORQUES FOR CUTTING BLADE SCREWS
CHANGING A TOOTH
Welding must occur in a workshop with proper welding tools. If you must weld
the product when it is on the carrier, consult your carrier dealer for
precautions during welding.
Warning! Support the jaw to prevent it from closing unexpectedly during
maintenance.
A used tooth can be recycled. Contact your dealer for more information about
local regulations of recycling.
Periodically check the wear and tear of the teeth and the interchangeable plates.
Item
Welding tool
Repair of parent, installation of
tooth
MIG-wire, DIN 8559: SG 2
Welding rod, DIN 1913: E 51 53 B 10
Hardfacing
MIG-wire, DIN 8555: SG 6 - 60
Welding rod, DIN 8555: E 6 - 55
Screw
Tightening torque, grade
8.8
Tightening torque, grade
10.9
Tightening torque, grade
12.9
M8
25 Nm (18 lbf ft)
35 Nm (26 lbf ft)
42 Nm (31 lbf ft)
M10
50 Nm (37 lbf ft)
70 Nm (52 lbf ft)
85 Nm (63 lbf ft)
M12
85 Nm (63 lbf ft)
120 Nm (89 lbf ft)
145 Nm (107 lbf ft)
M14
135 Nm (100 lbf ft)
190 Nm (140 lbf ft)
230 Nm (170 lbf ft)
M16
210 Nm (155 lbf ft)
295 Nm (218 lbf ft)
355 Nm (262 lbf ft)
M18
290 Nm (214 lbf ft)
410 Nm (302 lbf ft)
490 Nm (361 lbf ft)
M20
410 Nm (302 lbf ft)
575 Nm (424 lbf ft)
690 Nm (509 lbf ft)
M24
710 Nm (524 lbf ft)
995 Nm (734 lbf ft)
1240 Nm (915 lbf ft)
M27
1050 Nm (774 lbf ft) 1450 Nm (1069 lbf ft) 1750 Nm (1291 lbf ft)
M30
1420 Nm (1047 lbf ft) 2000 Nm (1475 lbf ft) 2350 Nm (1733 lbf ft)
