Schwing SPB 28, Operation Manual

Page: 193 / 216

101
Maintenance
SPB Operation Manual
Monthly Maintenance
Check slewing gear oil
1. Be sure the machine is set up in a reasonably flat
position.
2. Shut off the motor, use Lock-Out, Tag Out proce -
dure.
3. Remove the dipstick plug (Figure 11). The oil lev-
el should be visible on the dipstick and should be
near the full line. If needed, add oil (90W gear
lube). Do not replace the plug yet.
Breather fitting
Slewing pinion gear
Dipstick
Figure 11
Slew drive dipstick and breather
Clean the breather cap.
1. Rinse both the breather and the dipstick plug in
cleaning solvent. In a pinch, brake cleaner will
work. Never use gasoline!
2. Replace the dipstick plug, the breather cap, and
the pinion gear cover.
3. Restart the unit. Slew the boom left and right sev-
eral times, shut off the truck engine, and put the
key in your pocket. Then recheck the oil.
4. When the oil level reaches the full line on the dip-
stick, replace the dipstick plug and pinion gear cov-
er.
Visually inspect the turret bolts
If you find any loose nuts or bolts, do not re-tighten
them! Instead, replace any bolt that is loose, as well as
the two bolts on each side of it.
turret bolts.eps
Figure 12
Visually inspect the turret bolts for tightness. (With
boom in place, the top bolts must be accessed through
holes in turret.)
Refer to “Torque Specifications for Metric Bolts” on
page 110 of the Appendix section of this manual.