| 摘要 |
A trailer measuring system (10') for leveling a trailer during setup and for indicating deviations from an initial position of level of a trailer is provided. The device (10') includes a reservoir (16') and a plurality of measuring tubes (18') which can be secured to the frame (12) of a trailer (14) at horizontally spaced locations. Fluid communication is provided between the measuring tubes (18') proximate their lower end portions by tubing (20') and between their upper end portions by tubing (22) which connects the measuring tubes (18') in series or series/parallel to form a closed system. Fluid communication is selectively provided between the upper and lower end portions of the measuring tubes (18') and the upper and lower portions of the reservoir (16'), respectively. Indicia (38') is provided proximate the measuring tubes (18') along their lengths such that a user can discern, from the level of liquid in each tube, when the trailer is level, as well as deviations from an initial position of level of the trailer proximate the location of each individual measuring tube (18').
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