Horton 4100-PLUS - Page 56

15
HORTON
Installing Push Arm
 Tension the closing spring (Fig.17) to EN4
 Remove screws (B) and cleat (A) from arm assembly
 Secure cleat to door leaf according to dimensions in Fig. 11
 Insert washer (D) and screw (E) in spindle
 Locate and secure arm (F) to spindle (C) with screws (G)
 Close door
 Locate spindle (C) on output shaft so that arm is perpendicular to
door and tighten screw (C)
 Replace screws (B) loosely and re-attach cleat (A) to arm
 Keep door shut and rotate arm 5 to 15° to tension spring (Fig. 13).
 Tighten screws (B)
Fig.13 Push arm pre-tensioning
Misalignment of operator in relation to door leaf will effect a
bending force upon the arm causing stress and damage the
operator.
Arm Type Selection
Set slide switch according to push arm position.
Fig.15 Arm type selector switch