Manitowoc Grove CD3340B Service Manual page 127

CD3340B/YB4411
Mast Mounting Bolts
Because of the cyclic loading on the mast bolts, it is
important that these bolts be checked at regular intervals.
Make a record of any loose bolts. If any bolt does not hold to
correct torque after the second check, remove and replace
the bolt. A loose bolt indicates possible failure of the bolt.
Use the torque sequence shown in Figure 5-48 when
checking the torque on the bolts.
Swing Bearing to Frame Bolts
Torque the 3/4" bearing to frame mounting bolts (24) see
Torque Values page 1-9 for torque value. To gain access to
the bolts, rotate the mast until a bolt is visible in the access
hole in the mast mounting plate (Figure 5-48). Rotate the
mast as needed and tighten each bolt in a criss cross pattern
as shown in Figure 5-47 until all bolts are torqued.
GROVE
p0325
Bearing to Frame Mounting Bolts
Mast to Swing Bearing Mounting Bolts
Tighten the 5/8" mast to bearing mounting bolts toTorque
Values page 1-9 for torque value. See Figure 5-49. Tighten
each bolt in a crisscross pattern. See Figure 5-48.
Published 04/07/2015 Control # 569-00
MAINTENANCE
FIGURE 5-47
a0602
5
FIGURE 5-48
5-25