User`s guide

BYPASSING & ISOLATING

(continued)

Installation ManualASCO G, Q, S, U 7ATB, 7ACTB, 7ADTB

p a g e 3 --- 3381333–415 A ASCO Power Technologies

left support leg

right support leg

locking pin

with clevis pin

locking pin

with clevis pin

adjust length to touch floor

4000 A transfer switch draw–out procedure

grasp tw o handles

1. Bypass and Isolate the A TS, then open both lower doors.

2. Pull out the rail support carriage all the way.

3. Remove left & right clevis and locking pins, drop two support legs, reinstall locking

and clevis pins (to lock in place), and adjust both leg lengths to extend to the floor.

4. Stand directly in front of transfer switch. Grasp both handles, and pull straight out

(detentsontherailsrequirehighinitialforcetoovercomeresistance).

rail support

carriage

Figure 3–7b. 4000 A t ransfer switch isolated and pulled out for inspection.

For the 4000 A transfer switch, to avoid personal

injury and equipment damage, two support legs

must be extended as shown in Figure 3–7b.

Substantial initial force is required to pull out the

transfer switch (there are detents on rail).

The 4000 A transfer switch weighs approx. 600 lb;

use lifting yoke 835745–001 or other device

capable of lifting this weight to avoid personal

injury or equipment damage.