TM 10-3930-669-10 Table 2-3.  Operator Preventive Maintenance Checks and Services - CONT. Location Item Interval Item to Procedure Not Fully Mission No. Check/Service Capable If: DAILY- EXTERIOR- Continued Continued 22 During Mast Assembly a.  Check that mast raises and lowers Mast does not operate, evenly and movement is smooth. or operates roughly. Notify Unit Maintenance if necessary. b.  Check that forward and backward Tilt does not operate, or mast tilt is smooth.  Notify Unit operates roughly. Maintenance if necessary. c.  Check that carriage side-shift Carriage side-shift does operates smoothly.  Notify Unit not operate, or operates Maintenance if necessary. roughly. d.  Check backrest assembly for cracks, broken welds, or missing parts. Notify Unit Maintenance if necessary. e.  Check that forks open and close Forks do not operate, or smoothly.  Notify Unit Maintenance operate roughly. if necessary. 2-22