USMOWER QA60, Руководство оператора

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Maintenance
Blade Disc Assembly
Inspect Blade Disc and Bolts daily for excessive wear, cracks and tightness.
To loosen blade bolts, follow these instructions:
1. Lock bar or disc into a solid position by placing a piece of wood between the ro-
tor and the rotor guard.
2. Drive out roll pin in castle nut with 1/4” round punch.
3. Remove blade bolt nut with 1 13/16” socket or box wrench.
4. With blade hanging in relaxed position, strike blade with hammer until bolt
comes loose in its hole. Remove bolt and blade from rotor.
Blades should always be replaced in pairs. Blades of different weights can cause
serious imbalance and damage to the machine and personnel. When replacing
blades, check the condition of the blade bolts and nuts.
Replace bolt if it shows significant wear or damage or has the slightest indication
of a crack. Rotary mowers take and deliver a terrific beating. Shock and vibration
levels are very high so bolts loosen. It is important to check for loose or missing
bolts at least once a day and twice if cutting has been particularly tough. Blade
bolts are designed to be used twice if wear is not advanced. Simply rotate the bolt
90 degrees and retighten. The square shoulders on the bolt are intended for just
this purpose.
Always use new nuts with new blade bolts. Apply anti-seize compound to the bolt
threads and tighten to 75 ft. lbs. Max. Install new roll pin.
Blades are two sided and can be turned over if only worn on one side, but do not
reuse if bent. Always replace blades when they are excessively bent, deformed,
or out of balance.
Rotary Blade Kit Part #2564243
(Includes 2 Blades, 2 Rotary Blade
Bolts, 2 Slotted Nut, 2 Roll Pin)
QA60 QA72
2562028 27# Rotary Blade
2562010 27# Rotary Blade Bolt
2600232 27# Rotary Blade Bolt Nut
2562033 27# Rotary Blade Bolt Pin