Cub Cadet Z - Wing 48 service manual Changing a Blade, Changing the Blade Drive Belts

Figure. 5

f.Remove three hairpins from the deck (See Fig. 5). Remove the (2) hairpins on the left and right rear side of the cutter deck, and

(1) hairpin from the front of the deck.

g.Turn front caster wheels outward.

h.Shift the deck toward the operator’s left side of the mower and remove.

i.To install reverse the process.

2.Changing a Blade:

a.Remove the Key from the ignition and dis- connect the spark plug and set the parkng brake.

b.Jack up the front of the mowing deck about one foot and block it in that position.

c.Use a 1-1/8" socket wrench on the pulley side of the spindle to secure the blade bolt.

d.Remove the hex nut using a 1-1/8" wrench or socket.

e.Remove the blade assembly from the bolt.

f.The pivot blades are attached to the blade assembly with grade 8 shoulder bolts. To remove the blades hold the head of the bolt with a 3/4” wrench or socket and rem- move the nut with a 9/16” wrench or socket. Replace the 9/16” locknuts and the grade 8 shoulder bolts, and apply locktite 262, or equivalent to the threads.

WARNING:

Never mow with dull blades! Blades that are bent should be replaced! The cutting blades are sharp and can cause severe injury. Wrap the cutting surface of the blade with a rag to avoid injury.

g.Clean any debris from the blades. Keep blades sharp and free of build up at all times.

Hair Pins

h.Sharpen the pivot blades as part of the blade assembly, so that the balance of the assembly can be checked. Sharpen blades evenly at the original 30° angle to maintain balanced cutting blades. Do not sharpen the underside of the blades. Use a electric blade sharpener, a conventional electric grinder or a hand file to sharpen the blades.

i.Replace any blade with severe nicks or dents that cannot be removed by filing.

j.Check the balance of the blade assembly after sharpening by placing it on a blade balancer. Do not use un-balanced blades.

k.If the blade dips on one end, file stock off of the cutting surface on that end.

l.To replace the blade reverse the above process and tighten 1-1/8” nut to 100-120 lb ft. and the 9/16” nuts to 35-40 lb ft.

Note: Blade assemblies that cannot be eas- ily balanced—REPLACE. Replace 9/16” lock nuts if the pivot blades are removed from the assembly

3.Changing the Blade Drive Belts:

a.Set the parking brake. Remove ignition key and both spark plug caps.

b.Unscrew the wing nuts from the deck cov- ers and remove both covers.

c.Using a 1/2" socket breaker bar or socket rachet insert the male end into the 1/2" opening in the lower idler arm assembly and pull the idler arm clockwise. While holding the idler arm back, loosen the blade drive belt from the pulley and slide the belt away from the pulley.

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