Wacker Neuson BS 50, Repair Manual, Page: 109 / 156

Rammer Repair Crankcase
wc_tx001548gb.fm
109
6 Crankcase
6.1 Crank Gear and Connecting Rod
See Graphic: wc_gr007520
Recommended Tools
Hex key: 8 mm
2-Jaw bearing puller
Large diameter retaining-ring pliers
Hydraulic press
Screwdriver
Split puller
Slide hammer
Torque wrench
Loctite® 243 (blue)
Removal
6.1.1 Remove the four socket head cap screws that secure the ramming
system to the crankcase.
6.1.2 Stand on the ramming shoe and pull up hard on the crankcase until the
pin holding the connecting rod to the ram is visible.
6.1.3 Drive out the end plugs and the piston pin.
6.1.4 Lift the upper machinery from the ramming system.
6.1.5 Remove the four socket head cap screws (a) from the front cover.
6.1.6 Insert a screwdriver into the slots on each side of the cover and pry off
the cover. The cover will come out with the crank gear
(g) and the
connecting rod (k) attached.
Note:
The crankcase cover cannot be removed until the connecting
rod is detached from the ram.
6.1.7 Reach through the slotted hole (m) in the crank gear and release the
large retaining ring (f) .
6.1.8 Thread two M8 socket head cap screws, or threaded rods, through the
pusher holes
(n) in the crank gear. Turn the screws into the crank gear
to free the crank gear and the bearing from the cover.
6.1.9 Remove the small retaining ring (d) securing the bearing (e) to the
crank gear.
6.1.10 Pull the bearing free of the shaft using the split puller (p) and a 2-jaw
bearing puller (o) .
6.1.11 Remove the small retaining ring (h) that holds the connecting rod and
the bearing (j) to the crank gear.
6.1.12 Pull the connecting rod off the crank gear with a 2-jaw bearing puller.
6.1.13 Press the bearing out of the connecting rod.