SELECTION LINE: Service & Maintenance Manual - rev. 4.0
Page 5.10
5.8. THE BACKREST OF THE ADJUSTABLE BENCH
(P820/P920) FALLS DOWN – DISENGAGES DURING USE
If backrest falls down / disengages during use, YOU MUST implement the following TWO
PROCEDURES:
1. Check the selector pin (see paragraph check the selector pin), AND
2. Tighten the safety grub screw (see paragraph tighten the safety grub screw).
See the below procedures:
5.8.1. CHECK THE SELECTOR PIN
1-Remove the yellow cap (A) (TOOL: Flat screwdriver).
2-Remove the screw (B) (TOOL: 4-mm Allen key) and remove the knob (C) from the assembly.