Invacare R121 ユーザーズマニュアル

MAINTENANCE

Checking and Tightening Mast Pivot Bolt

NOTE: For this procedure, refer to FIGURE 7.3.

1. Lift up the back of the rubber boot and

slide it off the mast along the boom.

2. Check that the bolt is through the

bracket and the locknut is tight and
secure.

3. If needed, do one or more of the

following:

• Tighten locknut and back‐off the

locknut 1/8 of a turn.

• Replace the locknut.

4. Reposition the rubber boot.

FIGURE 7.3 Mast Pivot Bolt

Replacing the Swivel Bar

WARNING

After the first year of use, the hooks of the swivel bar and mounting brackets of the

boom should be inspected every six months to determine the extent of wear. If

these parts become worn, replacement must be made.

NOTE: For this procedure, refer to FIGURE 7.4 on page 39.

1. The swivel bar comes attached to the boom with bolt, nut, washers, and pinch guard.

NOTE: Washers should be placed against both sides of the boom mounting bracket to eliminate
damage.

NOTE: The swivel bar has three hooks on both ends to attach the sling that supports the patient
during lift.

2. Remove existing hardware and replace the swivel bar.

CAUTION

DO NOT overtighten the nut and bolt. This damages the mounting bracket.

Mast

Spacer

(if equipped)

Locknut

Boom

Bolt

Washer

Rubber Boot

Bracket