Manitowoc Grove CD3340B User Manual

GROVE 11-53
CD3340B/YB4411 STRUCTURAL
11
Published 04/07/2015 Control # 569-00
TULSA HOIST
Drum Rotation Indicator
The drum rotation indicator (DRI) is located on the left side of
the hoist and transmits a rotation signal to a solenoid (thumb
thumper) located in the hoist control lever at the operator’s
seat.
The DRI transducer has an integral Last Layer Indicator (LLI)
which is programmed to notify the operator when there are
three wraps of cable left on the hoist drum.
Removal
1. Loosen the collar on the connector and unplug the DRI
cable (1, Figure 11-133).
2. Remove the two retaining screws (2).
3. Remove the DRI unit from the hoist.
Installation
To install the DRI, use the following procedure:
C - Hoist “chatters” while raising rated
load.
1. Hydraulic oil flow to motor may be
too low.
1. Hydraulic pump not operating
efficiently.
2. Hoist control being operated too
quickly.
2. Conduct operator training as
required.
D - The wire rope does not spool
smoothly on the drum
1. Improper wire rope being used.
1. Use only wire rope purchased from
Grove.
2. The hoist may have been
overloaded, causing permanent set
in the wire rope.
2. Replace wire rope.
TROUBLE PROBABLE CAUSE REMEDY
FIGURE 11-133
1
2
3
7580-5
2
FIGURE 11-134
2
1
7580
Reference Only

Manitowoc Grove CD3340B Specifications

General

Brand	Manitowoc
Model	Grove CD3340B
Category	Construction Equipment
Language	English