Komatsu 830E, Shop Manual

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N2-4 Truck Cab 04/03 N02014
CAB DOOR
The cab door assemblies are similar except for the
hinge side. Each is hinged on the rear edge with a
heavy duty hinge. For repairs on the door latches or
window controls it is usually better, but not neces-
sary, to remove the door from the cab and lower it to
the floor for service.
Removal
1. If overhead space is available, raise body to
allow access to door with overhead hoist.
Secure body in raised position with safety
cables.
2. Lower door glass far enough to allow insertion of
lifting sling when door is removed.
3. Remove door panel for access to power window
motor harness connector. Disconnect motor
and remove cab harness from door.
4. Remove the retainer clip and bolt clip from the
travel limiting strap.
5. Insert lifting sling through door and attach to
hoist. Remove capscrews (a swivel socket
works best) securing door hinge to cab and lift
door from cab.
6. Place door on blocks or on a work bench to pro-
tect the window glass and allow access to inter-
nal components for repair.
Installation
1. Attach sling and hoist to door assembly, lift door
up to the deck and position door hinges to cab.
2. Align door hinges with cab and install capscrews
securing door to cab.
3. Attach the travel limiting strap with the bolt and
clip removed previously.
4. Reconnect door harness to receptacle mounted
in the cab floor.
5. Verify proper operation of power window and
door latch adjustment.
6. Install door panel.
Door Adjustment
If adjustment is necessary to insure tight closure of
door, loosen striker bolt in the door jamb, adjust, and
retighten.
A rubber sealer strip is mounted with adhesive
around the perimeter of the door assembly to
exclude dirt and drafts. This sealer strip should be
kept in good condition and replaced if it becomes
torn or otherwise damaged.
Door Jamb Bolt Adjustment
Over a period of time, the door latch mechanism and
door seals may wear and allow dirt and moisture to
enter the cab. To insure proper sealing of the door
seals, the door jamb bolt may need to be adjusted
periodically.
Step A . If the door closes, but not tightly enough to
give a good seal between the seal on the door and
the cab skin:
1. Mark the washer location (1, Figure 1) portion of
the door jamb bolt with a marker, pen, or pencil
by circumscribing the outside edge of the
washer onto the jamb.
2. Loosen the door jamb bolt (2) and move straight
inwards 1/16" and retighten.
FIGURE 2-3. DOOR JAMB BOLT ADJUSTMENT
1. Washer
2. Striker Bolt
3. Frame
4. Seal