Grandview GPCK-MB - Manual (Page 5)

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Model Size (unit:mm)
Product Specifications
Specifications
Lower Limitation
There are 2 methods to position the projector lift - set by the upper and lower limitations
on the remote.
1) Upper/Lower Limitation Adjustment for Sling Wires
The upper and lower limitations are preset at the factory. The upper limitation is slightly higher than the ceiling
and the lower limitation is shown in value D on the specifications table. Please note the upper and lower
limitations for the sling wire installation must be done by an qualified technicianto prevent any injury or damage.
Figure 20 Figure 21
The following steps must be done by an qualified technician.
a) For upper limitation adjustment, take off the knob and use the provided allen key to adjust. A clockwise
adjustment will retract the projector lift (the distance of the installation position of the casing will decrease) and
a counterclockwise adjustment will extend the projector lift position (the distance of the installation position of
the casing will increase).
b) For lower limitation adjustment, take off the knob and use the provided allen key to adjust. A clockwise
adjustment will retract the projector lift (the distance of the installation position of the casing will increase) and
a counterclockwise adjustment will retract the projector lift position (the distance of the installation position of
the casing will decrease).
Figure 22
Upper Limitation
GPCK-MB1800
GPCK-MB1000
510
510
510
510
110
110
360~1800
360~1000
520
520
520
520
225
225
Limitation of
Ceiling Height
Larger than 470mm
Larger than 470mm
Projector Lift Positioning Function