10
DIMENSIONAL
HYDRAULIC CIRCUITS
SINGLE-SPEED CIRCUIT
2-SPEED CIRCUIT
HOIST BRAKE
BRAKE
VALVE
PUMP
CONTROL
VALVE
HOIST ASSEMBLY
W/BRAKE VALVE
& STATIC BRAKE
BR
DR
WINCH BRAKE
BRAKE
VALVE
2-SPEED
SELECTOR
VALVE
PUMP
CONTROL
VALVE
WINCH ASSEMBLY
W/BRAKE VALVE
& STATIC BRAKE
T
P
BR
DR
A
PREVENTIVE
MAINTENANCE
A regular program of preventive maintenance for your
planetary winch is strongly recommended to minimize
the need for emergency servicing and promote safe,
reliable winch operation
Field experience supported by engineering tests, indi-
cates the three (3) service procedures listed below are
the
MOST
critical to safe, reliable winch operation and
must be observed.
• Regular Gear Oil Changes
– every 1000 hours or
six (6) months.
• Use of Proper Gear Oil
– recommended type for
prevailing ambient temperature.
• Annual Disassembly and Inspection of All Wear
Items
– in compliance with American National
Standards Institute (ANSI) specification B30.5c 1987
and American Petroleum Institute (API) recom-
mended practice RP 2D section 3.
The following minimum service intervals are specified
for operating hours of the prime mover.
1. Oil Level
3.
The gear oil level should be checked every 500
operating hours or three (3) months, whichever
occurs first. Oil level should be even with the cen-
terline of the winch drum. Rotate the winch drum
until the level plug can be seen in one of the two
access holes on either side of the drum support and
remove the plug.The oil should be level with the bot-
tom of this opening. If additional oil is needed, refer
to “Recommended Planetary Gear Oil”.
2. Oil Change
3.
The gear oil should be changed after the first one
hundred (100) hours of operation, then every 1,000
operating hours or six (6) months, whichever occurs
first. The gear oil must be changed to remove wear
particles that impede the reliable and safe opera-
tion of the brake clutch and erode bearings, gears
and seals. Failure to change gear oil at these sug-
gested minimum intervals may contribute to inter-
mittent brake slippage which could result in property
damage, severe personal injury or death.
3.
Rotate the drum until the -8 drain plug is aligned with
the lowest opening in the drum end support plate.
Install a short piece of 1 inch pipe through the end
plate. Reach through the pipe with a
5
⁄
16
hex allen
wrench and remove the -8 plug to drain the oil. Install
the -8 plug and remove the 1 inch pipe when all the
oil has been drained from the drum. Although gear
oil circulates between the drive and the drum
through holes in the primary ring gear, it is advis-
able to also remove the plug in the rotating part of
the winch drive to drain any trapped oil in the drive.
This is done by aligning the plug with the opening
in the support bracket directly below the winch
motor.
3.
The gear oil should also be changed whenever the
ambient temperature changes significantly and an
oil from a different temperature range would be more
appropriate. Oil viscosity with regard to ambient tem-
perature is critical to reliable brake operation. Make
certain that the gear oil viscosity used in your winch
is correct for your prevailing ambient temperature.
Failure to use the proper type and viscosity of plan-
– 8 –
DIMENSIONAL
DRUM
01
02
03
04
A
23.88
38.13
23.88
38.13
B
20.00
20.00
22.0-0
22.00
C
34.29
48.54
34.29
48.54
D
38.35
52.60
38.35
52.60
E
45.16
59.41
45.16
59.41
NOTE: Add 4.38 inches to Dimension “E” for 2
Speed Motor. (All Dimensions in Table and
Drawing are inches). See Publication PB-188 for
performance data.
Summary of Contents for CH330
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