10 5020 Parts & Specifications Manual Part # 99901218
WINCH
The winch is powered using a hydraulic motor driving a 38:1 worm gear. The line speed of 25.0
ft/minute (7.62 m/min), under no load on the first wrap, is achieved at an optimum oil flow of 10
GPM (37.9 liters/min) and one-part line. Maximum single line lifting capacity of the winch is
4300 lb (1950 kg) on the top wrap. Maximum two-part line lifting capacity of the winch is 8500 lb
(3400 kg). The winch is equipped with 85 feet (25.9 m), 3/8" (9.5 mm), 6X25 FW PRF RRL
IWRC XIPS wire rope. Nylon sheaves are located at the tip of the extension boom. The ratio of
winch drum and sheave pitch diameter is 18.6:1 for the drum and 18:1 for the snatch block and
boom tip sheave. A compact anti-two block device is included to prevent the lower block or hook
assembly from coming in contact with the boom sheave assembly.
MINIMUM CHASSIS SPECIFICATIONS
CHASSIS STYLE Conventional Cab
WHEELBASE 154" (391 cm)
CAB-TO-AXLE 84" (213 cm)
RESISTANCE TO BENDING
MOMENT
600,000 in-lb (6915 kg-
m)
FRAME SECTION
MODULUS
12 cubic inches (196.7
cc)
FRONT AXLE RATING
(GAWR)
7,000 lb (3175 kg)
REAR AXLE RATING
(GAWR)
15,000 lb (6804 kg)
GROSS VEHICLE RATING 22,000 lb (9979 kg)
TRANSMISSION 5 speed
In addition to these specifications, heavy duty electrical and cooling systems are required. It is
recommended that the vehicle be equipped with an engine tachometer, auxiliary brake lock, and
power steering.
NOTES:
1 GAWR means Gross Axle Weight Rating. GAWR is dependent on all vehicle components
including axles, tires, wheels, springs, brakes, steering and frame strength meeting the
manufacturer's recommendations. Always specify GAWR when purchasing a truck.
2 Minimum axle requirements may increase with use of diesel engines, longer wheelbase or
service bodies. Contact the factory for more information.
3 Weight distribution calculations are required to determine final axle loading.
All chassis, crane and body combinations must be stability-tested to ensure stability per ANSI
B30.5
Iowa Mold Tooling Co., Inc. reserves the right to change specifications and design without notice.
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