[Mike1450]

A few weeks ago I seen a post ask about Hydro Temperature, I don't believe I seen if anyone had any info to offer. Today after mowing for 1.5 hours I decided to document the temperatures on my 1450 Hydro.

This may give you a reference point to start at.

Measurement Equipment: IR hand held with lazer pointer (accuracy +/-3 degrees @ 12 inch)

Test conditions:

Outside ambient Temperature: 84F
Engine no load: 3600 rpm
Trans fluid new: 15 hours on it
Trans Fluid new: 15 hours on it
Trans Fluid Level: Filled even with fill hole
Trans condition: Clean
Hydro Fan condition: New
Parking brake on Hydro in Neutral

Measurements started within one minute of stopping mower. Distance of measurement < 12 inches

Top of Hydro through inspection cover (removed) center of fins : 184F
Front of Hydro between Filter and Charge pump : 180F
Oil Filter : 177F
Rear End at oil suction tube : 175F
Rear End at rear axle Left side (from back): 168F
Rear End at rear axle Right side (from back):168F
Rear End cover under fill hole plug: 165F

Notes: Temperatures at fins drop quickly (expected) ~ 2 degrees per minute engine 3600 rpm.
Temperatures will also vary without side ambient temperatures
True Temperature rise ( measured temp – Ambient = True temp rise)