Trowel Gearboxes - Husqvarna CRT 36-25 Operator's Manual

CRT 36
4.3

Trowel Gearboxes

Check the gearboxes for the correct oil level after every 20 hours of operation.
Change the gearbox oil every 300 hours.
To check the oil level:
Each CRT gearbox is equipped with two oil fill plugs. Remove one gearbox oil fill
plug (b). If the level is below the threads of the oil fill plug hole, add synthetic gear
oil through the opening. DO NOT overfill. Wipe the threads dry on both the gearbox
and the oil fill plug, apply Loctite 545 or equivalent to the oil fill plug threads,
replace the oil fill plug and torque to 16–20 Nm (12–15 ft.lbs.).
NOTICE: DO NOT mix types of gear oil. DO NOT overfill the gearbox with oil.
Damage to the gearbox may occur if oils are mixed, or if the gearbox is overfilled.
See Technical Data for oil quantity and type.
To change gearbox oil:
1. Place a container of sufficient capacity (approximately 3.8 l [1 gallon]) under
each gearbox.
2. Remove the gearbox oil drain plug (c) and allow the oil to drain out. It may be
necessary to remove the gearbox oil fill plug(s) to facilitate draining. After most
of the oil has drained out, tip the back of the trowel upwards to allow the
remaining oil to drain out.
3. After all the oil has drained out, wipe the threads dry on both the gearbox and
the oil drain plug, apply Loctite 545 or equivalent to the oil drain plug threads,
and replace the gearbox oil drain plug.
Note: Dispose of used gear oil in accordance with environmental protection
legislation.
4. With the trowel level, fill the gearbox with approximately 1.83 l (62 oz.) synthetic
gear oil through the oil fill plug as described above.
5. Wipe the threads dry on both the gearbox and the oil fill plug, apply Loctite 545
or equivalent to the oil fill plug threads, replace the oil fill plug(s), and torque all
plugs to 16-20 Nm (12–15 ft.lbs.).
Each gearbox has a pressure relief valve (a) which can become clogged over
time. Check or replace as needed. Failure to replace the valve can result in oil
leakage from the gearbox shaft seals.
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Maintenance