HUSTLER Z Diesel Operator's Manual page 44

Pump drive belt only - Inspect belt every 100 hours and replace if worn or cracking is noticed. Check spring tension adjustment. Otherwise,
6.
replace belt every 400 hours or 2 years whichever comes first. Check and adjust spring tension after 50 hours of use as outlined in the Hydraulic
Pump Belt Adjustment section of the General Service Manual (115164).
CZ
Check fuel system for any cracks or leaks including, but not limited to, fuel line hoses, fuel valve, vent line hoses, vent valve, vapor valve, carbon
7.
canister, and grommets. Replace as needed.
More often under dusty or dirty conditions and during hot weather.
8.
Inspect ROPS after the first 20 hours of operation and then after every 500 hours of operation or yearly whichever comes first.
9.
10. Refer to engine owner's manual for engine service information.
11. Any maintenance operation that requires the removal of safety covers must be performed by a trained service technician.
DA
* After completing maintenance cycle (500 hours), repeat cycle.
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REV G 4-12 603695CE