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Greensmaster 3150
DPA Cutting Units
Page 7 -- 18
Bedknife Replacemen t and Grinding
1. Screw (13 used) 2. Bedbar 3. Bedknife
Figure 17
v
200 to 250 in--lb
(23to28N--m)
Lightly Oil
Bedbar Surface
2
Antiseize Lubricant
1
3
Bedknife Removal (Fig. 17)
1. Remove bedbar from cutting unit (see Bedbar Re-
moval in this section).
2. Remove screws from bedbar using a socket wrench
and bedknife screw tool (see Special Tools in this chap-
ter). Discard screws. Remove bedknife from the bedbar.
Bedknife Installation (Fig. 17)
1. Use scraper to remove all rust, scale and corrosion
from bedbar surface. Lightly oil bedbar surface before
installing bedknife.
2. Make sure that screw threads in bedbar
(5/16--18UNC--2A) are clean. If necessary, use tap to
clean threads.
3. Apply antiseize lubrican t to the threads of new
screws. Take care to keep antiseize lubricant from taper
on screw heads.
IMPORTANT: Do not use an impact wrench to tight-
en screws into the bedbar.
4. Use n ew screws to secure bedknife to bedbar. Install
all screws but do not tighten fully. Then, using a torque
wrench and bedknife screw tool, torque screws from
200 to 250 in--lb (23 to 28 N--m). Usea torquing pattern
working from the center toward eachend of the bedknife
(Fig. 18).
5. After installing bedknife to bedbar, grind bedknife.