Tim Shimp 2 #1 Posted Friday at 11:15 AM Hello, I need some help please, does anyone know if a 48'' mower deck part number 78360 off a 1997 520H will fit on a 1991 520H Thank you Share this post Link to post Share on other sites
ri702bill 10,951 #2 Posted Friday at 11:30 AM Welcome! Download the Chart Implement Interchange .pdf File In the Implements Section. It tells what fits what from 1955 to 2000. Not 100% sure, but it most likely fit since both are 520's. 1 Share this post Link to post Share on other sites
grinchsr 655 #3 Posted Friday at 11:37 AM Welcome and yes it will fit. 1 Share this post Link to post Share on other sites
Tim Shimp 2 #4 Posted Friday at 12:50 PM 1 hour ago, grinchsr said: Welcome and yes it will fit. Thank you Share this post Link to post Share on other sites
peter lena 9,641 #6 Posted 18 hours ago @Tim Shimp great time to check out , verify , state of condition , and movable function . how easily does the deck spindle assembly move / spin ? related , belt wear will attest to ,BEARING HANG UP , typically lubrication failure , break down . a fuzzy belt is telling you of movement failure , also BELT BOUNCE , TELLS YOU THAT . initial hook up and pto lever engagement , should be easy AND QUIET , no screaming start . good luck with it , pete Share this post Link to post Share on other sites
Tim Shimp 2 #7 Posted 13 hours ago On 1/9/2026 at 6:15 AM, Tim Shimp said: Hello, I need some help please. Does anyone know if a 48'' mower deck part number 78360 off a 1997 520H will fit on a 1991 520H Thank you Hello, I have another question. When I move the lever to lift the mower deck, it does not go down. Note that I do not have the deck attached when I'm doing this. My question is, does it need the weight of the mower deck for it to go down? sorry if this doesn't make sense. Thank you. Share this post Link to post Share on other sites
rick 258 #8 Posted 10 hours ago (edited) Without an implement attached, there is not enough weight to move the piston in the hydraulic cylinder down quickly. Edited 10 hours ago by rick Punctuation Share this post Link to post Share on other sites
WHX?? 53,700 #9 Posted 7 hours ago It still should move tho as it's a double acting cylinder. Means it uses hydraulic pressure to move it up and down. You may have some air in the system. Check the transmission oil level. Having some weight on it may help bleed air. It may also be the transmission might need some warm up time. The charge pump... the part of the transmission that provides high pressure ... often needs to run for abit to get fluid moving. Especially in cold weather. 1 1 Share this post Link to post Share on other sites
Handy Don 15,594 #10 Posted 6 hours ago Down pressure from that lift is actually stronger than the up pressure because down is extending and lift is retracting. 1 Share this post Link to post Share on other sites
