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GWM Installation manual
Mounting the electric motor
Mounting the electric motor may only be carried out by qualified staff, see section 1.
Electric motors with an interface corresponding with IEC 72-1 size 71 will fit the gearbox. Maximum allowable
input torque is specified for each gearbox in the technical specification; make sure that the electric motor does
not exceed these specifications.
Secure the electric motor with four M6x16 bolts with a strength class of 8.8 according to ISO 4014and apply a
torque of 10 Nm to 15 Nm to tighten the bolts.
Attention! Do not forget to place the parallel key in the key
slot of the electric motor shaft.
The gearbox will not function and could get damaged
when the parallel key is not fitted.
Electrical connection
Connecting and commissioning may only be carried out by qualified staff.
Risk of injury or death due to electrical or mechanical forces!
Before starting to work on the gearbox or related parts,
always switch the power off at the master switch or
operating switch and lock it with a padlock to prevent
switching on again.
Mains connection for three-phase AC motors
The wiring diagram can be found in section 9.
Attention!
Swapping the supply voltage phase connections changes
the direction of rotation of the drive. This changed
direction will not correspond with the control circuit
which is connected to the limit switch.
1. Remove the cover from the terminal block of the electric motor;
2. Insert the cable through the cable gland and rubber gasket;
3. Connect the green/yellow lead to the PE terminal (earth);
4. Connect phase L1 to terminal U1, phase L2 to terminal V1 and
phase L3 to terminal W1 (see diagram);
5. Check the direction of rotation of the output shaft in relation to
the limit switch and the control cabinet, and swap two phases if
necessary;
6. Fit the terminal block cover and gasket back on the motor and
tighten the cable gland;
7. Make sure that the cables are clear of any moving parts.
De Gier B.V., Westlandseweg 9, 2291 PG WATERINGEN, THE NETHERLANDS, Tel. +31 (0)174 292089, Fax +31 (0)174 295644.
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