Owner`s manual

A. DESCRIPTION:
The Hurth transmission housing is made of a high strength aluminum alloy that is resistant to sea
water. The transmission is equipped with shaved and case hardened
helical gears and with shafts
mounted in heavy-duty roller bearings. Forward and reverse is
accomplished by a mechanical fric-
tion clutch.
Gear shifting is mechanical and requires only a minimum effort on the gear lever. Precision
set-
ting or readjustment of the shifting control (Morse or Teleflex) is not required.
The transmission is designed to permit reversing at
full engine speed. TO BE USED ONLY IN
THE EVENT OF AN EMERGENCY!
B. SERVICING:
The transmission is filled with Type AFT or DEXRON II transmission fluid at the factory during the
engine load test.
Recheck and fill the gear box with the prescribed oil up to the FULL INDENTED
RING
MARK ON THE DIPSTICK (approximately 1/4" up from bottom of stick). Do not overfill.
When checking the oil level,
DIPSTICK TO BE INSERTED ONLY - DO NOT SCREW IN.
Tighten the dipstick after adding oil or checking the oil level.
FULL 1. Placing in service after storage.
If the transmission was completely filled with oil for storage and preservation, make sure to
drain the excess oil to the proper level. Use new oil if necessary.
2. Oil quantity.
Transmission Fluid
Quantity
HBW50
0.29 Quarts (O .. 30 Liters)
Approximately
HBW100
0.33 Quarts (O.35 Liters)
3. Oil grade.
HBW150
0.59 Quarts (O.56 Liters)
HBW 150V
1.10 Quarts (1.05 Liters)
Automatic Transmission Fluid, "AFT Type A oil only" according to specification DEXRON II
(General Motors) and M2 C33 G (Ford).
ALWAYS USE THE SAME GRADE AND TYPE OF OIL WHEN ADDING OR CHANGING OIL.
WARNING: ADDITIVES SUCH AS MOYBDENUM SULPHITE OR THE LIKE MUST NOT BE
CONTAINED IN THE OIL UNDER ANY CIRCUMSTANCES.
C. MAINTENANCE:
1.
Oil level in the transmission should be checked weekly.
Oil level: See Servicing.
2. Changing oil.
Change oil after first 25 hours of operation. Then change every
300 hours of operation, or at
least at intervals of once a year or season.
3. Placing transmission in storage.
If the transmission is put out of operation for long periods of time under unfavorable en-
vironmental conditions, it should be protected against corrosion by filling it completely with oil
of the same, grade and type. Otherwise, it should be operated briefly, with a good oxida-
tion inhibiting oil to allow the agent to contact all parts of the gearbox.
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REVISED NOVEMBER 1997