Model 300AB
1600# Double
Line Lift Capacity
MY-TE
Winch and Hoist
OPERATION and MAINTENANCE
OF
115 Volt AC Capstan Winch-Hoist
Main Parts List for 300AB
READ THIS BEFORE OPERATING UNIT
INS TALLATION:
Mount on clean. flat surface. Bolt down with 4-1 /2" bolts. For ease of service,
we do not recommend welding frame to surface.
Unit should be plugged into a 115 Volt AC. grounded receptacle. Use of
extension curds may cause power loss at full capacity. Make sure the voltage
and type of current stamped on the name plate 1s used. The 115 Volt units
require 19 amps. service for maximum lift, and uses a manual reset circuit
breaker rated at 20 amps
For acJcJ,tional safety, a power disconnect may be installed to provide a means
of cutting power 1n place of using the power cord to disconnect.
ROPE USAGE AND SAFE TY:
The capstan drum winch-hoist ,s designed to be used with rope of 1/2" to 3/
4" diameter to winch or hoist loads requiring up to 800 lbs. of single line pull.
Polye::,ter or Dacron rope makes a good rope choice due to its resistance to
heat generated by drum friction. Do not use wire rope.
Wrap the rope around the drum placing the load line closest to the gear box.
An alternate method of lowering a load is to operate the winch-hoist in the
fo�Nard d,rect,on while paying rope back onto the drum.
The prnoer number of wraps 1s determined by feel. Feeding off and paying
back of tt;e fall line should require minimal effort. Use at least 3 wraps of rope
on the drum Heavier loads may require 4 wraps. Do not place so many wraps
on the drum as to allow the rope to ride over the end of the drum. If the load
requires excessive operator effort or more than 4 wraps of rope on the drum,
a two part line must be used. If this does not alleviate the problem, check the
weight of the load and be sure rope travel and load path are unrestricted. Do
not overload the winch-hoist'
OPERATION:
Tr1ese units are designed for intermittent duty operation. Mfg. recommends
a 25% duty cycle. That 1s. for good motor life, usage of 15 minutes out of one
hour 1s preferable
To prevent shock loading, slowly remove slack from rope before full load is
moved.
The remote control switch 1s a special 4 wire control which is part of the
dynamic brake control system. Changing the switch to some other type will
eliminate the braking action. Use only factory provided switch.
Remote switch provides forward and reverse control through a 24 volt
transformer. Lifting power 1s the same in either direction.
MY-TE WINCH-HOISTS ARE DESI GNED
FOR MATERIAL HANDLING USAGE.
MAINTENANCE:
If the unit installed outside, be sure to provide a cover to protect motor and
controls from the weather. When the unit 1s in operation be sure cover 1s
completely removed.
Periodic inspection of switch and power cord should be made to detect any
damage or cuts which would require replacement.
The gearbox oil 1s shared between the spur and worm gear housings. The
factory-installed oil is a Shell product Omala 68. It is an EP type industnal
gear oil, ISO Grade 68. If this is not available, an SAE 20 weight, non-detergent
motor oil is acceptable. Standard capacity is 18 ounces.
TROUBLE SHOOTING AND REME DIE S:
CAUTION: BEFORE SERVICING OR INSPECTING UNIT FOR PROBLEMS
BE SURE TO DISCONNECT POWER.
If the unit does not run, check power supply. Be sure correct voltage and
frequency are being used. Remove power plug and remove control box cover.
Visually inspect for loose wires, stuck contacts on relays, and screws which
may have worked loose.
If the unit runs but braking is not instantaneous, check resistors and motor
brush condition. Bad resistors will effect the dynamic braking. Check resistors
for cracked porcelain and exposed wire. Replace as needed. To check resistors
electrically, test individually with a continuity test On ohmeter, each resistor
should have a value of 4 ohms and together a resistance of 2 ohms.
Care should be taken to keep the armature in good condition which may be
accomplished by lightly rubbing commutator with a rubstone.
Check brushes to see that they seat on the commutator and are not cracked
or badly worn. Replace as needed. Brush springs should provide enough
tension to help keep brushes seated.
If the unit does not operate properly after the above remedies, contact a
qualified electrician or the factory.
WARRANTY:
All My-te winch-hoists are designed for material handling use only. My-te
Products, Inc. warrants each My-te winch-hoist to be free of defects in material
and workmanship for a period of one year. This warranty does not cover
abuse, neglect or use above or beyond rated capacity and duty cycle. Warranty
coverage includes shipping charges. one way, by standard ground service.
Warranty does not cover cost of installation or removal of winch-hoist from
service or loss due to downtime or time out of service. My-te will not reimburse
unauthonzed warranty expense. The final responsibility for fit of winch-hoist
with application rests with end user. The warranty is void if the winch-hoist is
altered or parts substituted. This warranty 1s limited to repair or replacement at
manufacturer's factory or a point designated by the manufacturer. Inspection
by the manufacturer will determine manufacturer's liability.
My-te Products, Inc.
9880 East 30th St., Indianapolis, IN 46229
317-897-9880
317-897-9811 (fax)
www.myte.com
sales@myte.com (E-mail)
