Section 3. Systems Overview
Model 4700 Maintenance Manual
General
General
Serial Number Designations
This lift truck can be configured to operate with a 36V or 48V battery. Operator input/command signals are communicated to various electronic components via a CAN-Bus network. Pressure for lift, tilt, sideshift, and steering is provided by a hydraulic pump driven by an AC motor. The pump motor is controlled by an AC power amplifier (PPA). Dual Traction Motor Trucks - Two independent AC motor/drive unit assemblies provide traction via a dual AC power amplifier (TPA). A multiple disc, oil bath type brake system is located internal to the drive units. Single Traction Motor Trucks - An AC motor coupled to a differential type drive unit provides traction via an AC power amplifier (TPA). Trucks below S/N 10677 use automotive type drum brakes located on the drive wheels. Trucks 10677 and up use a multiple disc, oil bath type brake system located internal to the drive unit.
The truck serial number consists of a three-digit model abbreviation, two-digit year of manufacture, two letter configuration code, and five-digit serial number. Example: 470-12-xx12345 The two letter configuration codes (xx) are designated as follows: •
SM = Single (traction) Motor
•
DM = Dual (traction) Motor
•
HM = High Maneuverability (dual traction motor)
•
L or SL = Single traction motor, Long chassis
NOTE: The mast designation is not an indicator of the truck’s chassis or drive system.
Model Designations Refer to Table 3-1 for model specific system configuration information. Table 3-1. Model Designations Model
System Configuration
C30
Dual traction motor; 3000 lb. capacity
C40
Dual traction motor; 4000 lb. capacity
C50HM
Dual traction motor; 5000 lb. capacity High Maneuverability (smaller turning radius)
C50
Single traction motor; 5000 lb. capacity Standard lift (450A AC2 PPA)
C50HP
Single traction motor; 5000 lb. capacity High Performance lift (600A AC3 PPA)
C50 L or SL
Single traction motor; 5000 lb. capacity Long chassis (allows less down rating at height)
C60
Single traction motor; 6000 lb. capacity
3-2
Publication 1160093, Issued: 20 May 2013
