Pen Scale Removal; Carriage Arm Removal; Removal Of X-Axis Rebalance Potentiometer; X-Axis Wiper Protection - HP -7035B Technical Manual

FIGURE 5-5. PEN SCALE REMOVAL
FIGURE 5-6. CARRIAGE ARM REMOVAL
5-23. POTENTIOMETER REPLACEMENT - X-AXIS
5-24. The mandrel and its mounting channel are an integral
unit, available only as a single item. Install as follows:
a. Remove rear hood and platen. See paragraph 5-18.
b. Remove 2 screws mounting slidewire assembly to
frame. See Figure 5-7.
c. Unsolder 3 wires, noting order of leads connected to
slidewire.
d. More slidewire assembly upwards, being careful
to damage wiper.
See Figure 5-8.
5-4
FIGURE 5-7. REMOVAL OF X-AXIS REBALANCE
FIGURE 5-8. X-AXIS WIPER PROTECTION
e. Install new slidewire assembly, Part No. 07035-
80730.
5-25. WIPER REPLACEMENT - X-AXIS
5-26. The wiper is made of a soft metal to absorb wear. It is
located on the pen motor block at the upper end of the carriage
arm. New wiper assemblies should be obtained from the
factory and installed as follows:
CAUTION
not
POTENTIOMETER
Damage to the flat mandrel slidewire may
result if other than factory supplied wiper
is used.