Volvo EC15E, Operator'S Manual

Page: 134 / 238

Signalling diagram
Manual signalling to an operator of a mobile excavator as per SAE J1307.
The primary use of hand signals is for a signalman to direct the lifting, handling, and
placement of loads attached to working equipment. Hand signal usage may also be
applicable to earth moving operations and/or machine travel when the operator's visibility
is obstructed.
If a rapid lifting, lowering or moving movement is required, the dipper arm movements
should be carried out more lively. If two different machines are used for lifting the same
load, there should be an agreement beforehand how the lift should be carried out and
what signals should be given to the respective operators.
V1065920 V1065921
V1065923
RAISE LOAD VERTICALLY
With either forearm vertical,
forefinger pointing up, move
hand in small horizontal
circles.
LOWER LOAD
VERTICALLY
With either arm extended
downward, forefinger
pointing down, move hand in
small horizontal circles.
MOVE LOAD IN
HORIZONTALLY
With either arm extended,
hand raised and open
toward direction of
movement, move hand in
direction of required
movement.
V1065924
V1065925
V1065926
MOVE LOAD OUT
HORIZONTALLY
With either arm extended,
hand raised and open
toward direction of
movement, move hand in
direction of required
movement.
RAISE BOOM
With either arm extended
horizontally, fingers closed,
point thumb upward.
LOWER BOOM
With either arm extended
horizontally, fingers closed,
point thumb downward.
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Operating techniques
Signalling diagram