monitor arm keeps tilting down

HP Series 5 27 inch PC Desktop Monitor Full HD 100 Hz 5ms IPS 300 nits Integrated Speakers Tilt Adjust Anti-glare, 527sa - Manufacturer Refurbished

ErgoAV Extend and Tilt TV Mount 42"- 98" TVs: Wall Mount for 200x100, 600x400 VESA

Lifeware TV & Monitor Wall Mount - Up To 55 Inches

Sanus VST4-B1 Premium Series Tilt TV Mount for 13" - 39" TV

Emerald Tilt Wall Mount for 26"–55" TVs, Low Profile, Tilt, 99 lbs Capacity, VESA 200x200–400x400mm

Stanley Tools Pro DIY Series 37-In. to 80-In. Full-Motion Dual-Arm TV Wall Mount, THX-DDS6415FM in Black

Pyle 17"-23" Flat Panel TV Cantilever Wall Mount with Tilt & Swivel - PSW115

Emerald Full Motion TV Wall Mount for 37"-85" TVs – Swivel & Tilt, 126 lbs Capacity

Peerless-AV® SmartMount® Universal 39-In. to 80-In. Tilt Wall Mount in Black

Kanto T3760 Tilting Wall Mount for 37" - 70" TVs

Perlegear UL Listed Full Motion TV Wall Mount for 40-86" TVs up to 132 lbs, Tool-Free Tilt, Swivel & Extension, Max VESA 600x400mm

Sylvox Full Motion Outdoor TV Wall Mount for 40-75 inches, with Flexible 6 Articulating Dual Arms for Flat Curved Screen TV

Flat Panel TV Wall Mount for Space Saving with Articulating Arm, Adjustable Distance, 165 lb Weight Capacity

MegaMounts Full Motion, Tilt and Swivel Single Stud Wall Mount for 26-55 Inch LCD, LED, and Plasma Screens

MAICIFI Full Motion TV Wall Mount for 19-55 Inch LED LCD Flat Curved Screens Swivel Tilt Extension VESA 400x400 66lbs Capacity 4K Viewing

Manhattan® 32"–55" Universal Tilting Flat Panel Mount in Black

One For All® SOLID Series 42-In. to 100-In. Universal Tilt TV Wall Mount in Black

Perlegear Full Motion TV Wall Mount for 26-65" TVs, Articulating Bracket with Swivel, Tilt & Extension, Max VESA 400x400mm, Supports Up to 99 lbs

Emerald Tilt Wall Mount for 32"-90" TVs – Heavy Duty, Low Profile 15° Tilt, Up to 120 lbs

Sanus VMPL50A Tilting Wall Mount for 32"-85" TVs

Stanley Tools Pro DIY Series 37-In. to 80-In. Full-Motion Single-Arm TV Wall Mount, THX-SS1364FM in Black

Sanus VLT5-B1 Premium Series Tilt TV Mount for 51" - 90" TV

VEVOR Full Motion TV Mount Fits for Most 37-75 inch TVs, Swivel Tilt Adjustment TV Wall Mount Bracket, Max VESA 600x400mm, Holds up to 132 lbs

XTREME TV WALL MOUNT TILT MOTION 42X90 XMB10131BK